schematics and diagrams: 2011

Saturday, December 31, 2011

How to Increase gas mileage on 2011 2500HD Duramax 6.6?

As you mentioned that your GM 2500HD is of year 2011,this clears that its newest model ans under full warranty.If your vehicle is under warranty,then doing this on your own will void the warranty.To be honest their is not much you can do. On newer model vehicles every thing is controlled by programming chips.Since the chips and programmers get the best results they are recommended but they leave footprints that may impact warranty.
So the things you can do are change to a cold air intake, and maybe modify the exhaust slightly but even that is hard.
One trick is to get a second PCM and program it with the chip. Then if you do need warranty you switch the PCM out and the footprints are gone.

There are some companies which sell GF Performance Chip online.Also they claim,that warranty of your vehicle will not void.But they don't provide any kind of guarantee.But yes this GF Performance Chip are genuine in most cases.But still confirm before buying.

This details will help.Thanks.

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See below list of solved fuel related car problems :----------

How to maximize fuel economy on your vehicle?

http://schematicsdiagram.blogspot.com/2011/11/how-to-maximize-fuel-economy-on-your.html

For more Fuel/gasoline related help, follow the list mentioned below: -----

How to Replace a Fuel Injector

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html

How to Replace a Fuel Pressure Regulator?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pressure-regulator.html

How to Replace a Fuel Pump?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pump.html

HOW TO CLEAN A FUEL SYSTEM

http://schematicsdiagram.blogspot.com/2011/07/how-to-clean-fuel-system.html

HOW TO REPLACE A FUEL TANK

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-tank.html

HOW TO REPLACE A FUEL TANK CAP

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-tank-cap.html

HOW TO REPLACE A FUEL PUMP ASSEMBLY

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-pump-assembly.html

Time to replace Fuel pump on 1998 Ford Explorer?

http://schematicsdiagram.blogspot.com/2011/12/time-to-replace-fuel-pump-on-1998-ford.html

Emergency fuel shut switch on Ford car?

http://schematicsdiagram.blogspot.com/2011/12/emergency-fuel-shut-switch-on-ford-car.html

How to jump fuel pump On Chevrolet Silverado 1500?

http://schematicsdiagram.blogspot.com/2011/12/how-to-jump-fuel-pump-on-chevrolet.html

Car won’t start when cold?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html

Car won't start after sitting overnight?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-after-sitting-overnight.html

Car loses power while acceleration?

http://schematicsdiagram.blogspot.com/2011/12/car-loses-power-while-acceleration.html

No power due to weak turbo?

This problem is noticed on 2002 GM Silverado Duramax.

This types of problems are not very common,but noticed in few cases.Basically in this cases the engine has no power unless you push gas pedal all the way to the floorboard.
In some cases there is steady check engine light and in some cases no check engine light comes up.
If the check engine light is there,then getting the car scanned will help to retrieve the error codes and further you can troubleshoot with the codes.
But if no check engine light comes up,then there are many possibilities like faulty fuel injectors,dirty clogged fuel filter etc etc.But if all that checked ok then its weak turbo issue.To test Turbo you can check the mass air flow readings when it is wot driving. It should get over 400 g/s. You should have tech2 tool to check the mass air flow readings.
If the converter is broken up it could be intermittent.
The turbo is possibly the issue, can you check the waste gate operation? Move it by hand, see what it does and check the rubber hose. Waste gate is on the side of the turbo, a pot with a hose to it and a rod to a lever coming out of it.

This details will help you.Thanks.

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See below latest solved car problems :--------

AUTOMOTIVE EMISSIONS?

http://schematicsdiagram.blogspot.com/2011/12/automotive-emissions.html

AIR POLLUTION?

http://schematicsdiagram.blogspot.com/2011/12/air-pollution.html

Bank 2 Sensor 1 Heater circuit Failure?

http://schematicsdiagram.blogspot.com/2011/12/bank-2-sensor-1-heater-circuit-failure.html

Left bank sensor running lean?

http://repairhelpcenter.blogspot.com/2011/12/left-bank-sensor-running-lean.html

Car cranks, then run for second and then quit?

http://repairhelpcenter.blogspot.com/2011/12/car-cranksthen-run-for-second-and-then.html

How to replace Starter on Infiniti Q45?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-starter-on-infiniti-q45.html

Where is Radio Fuse located on 2007 Dodge charger?

http://schematicsdiagram.blogspot.com/2011/12/where-is-radio-fuse-located-on-2007.html

Trunk button Not Working on Buick car?

http://schematicsdiagram.blogspot.com/2011/12/trunk-button-not-working-on-buick-car.html

EGR Hoses melting?

http://repairhelpcenter.blogspot.com/2011/12/egr-hoses-melting.html

Shift indicator directly goes to 2nd when key is turned ON?

This problem is noticed on 2003 Chevrolet Silverado 2500 HD 6.0L engine.

This problem is noticed on many car models,not just on Chevy.

Actually in this problem,the truck will not start,but when you turn the Ignition KLey to ON mode,the shift indicator will go to second gear.It will not go back to park mode or any further gears.It just goes to second gear.

In this types of problem,first the basic possibilities needs to be inspected and replaced.

The neutral safety switch.This has to be checked,if its faulty,then replace it.If neutral safety switch is checked ok,then it can be loose wiring issue,pull the dash apart and inspect the wiring's and its connectors,if any is loose then reconnect the connectors.

But in case,if all checked out ok,then ...........

This is a simple issue and yes a common one,but the one that you are unable to fix with parts. The issue is a firmware issue in the PCM. This faulty firmware causes this to happen and will not allow it to start even if you jump the starter.

The only fix is the update. Now this can be done a a gm dealer or a shop that does gm programming. It should take about 20 mins and an honest shop would charge only about 40-50 dollars for this. But the cost may increase f the reprogramming takes more time.

This details will help.Thanks.

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See below few solved gear shift problems :-------

Chrysler PT Cruiser only goes in First gear?

http://howtobyme.blogspot.com/2011/11/chrysler-pt-cruiser-only-goes-in-first.html

Car is stuck in park and the shift will not move?

http://howtobyme.blogspot.com/2011/08/car-is-stuck-in-park-and-shift-will-not.html

Car will not come out of Park?

http://howtobyme.blogspot.com/2011/11/car-will-not-come-out-of-park.html

Automatic transmission will not go into high gear?

http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html

Car won’t downshift sometimes?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-downshift-sometimes.html

Buick Park Avenue:Transmission will shift into drive?

http://schematicsdiagram.blogspot.com/2011/12/buick-park-avenuetransmission-will.html

Ford Taurus won’t shift from park?

http://schematicsdiagram.blogspot.com/2011/12/ford-taurus-wont-shift-from-park.html

Car Transmission will not go into Park mode?

http://schematicsdiagram.blogspot.com/2011/12/car-transmission-will-no-go-into-park.html

Front struts installing are bit longer ?

The new front struts with springs attached are 1 inch longer than the old ones. They will not fit unless you compress the springs a little bit to get them connected. This extra tension on the springs can cause other minor suspension problems later on. This may cause the suspension to ride a bit higher, half an inch or so, but other than the alignment is not an issue, and the alignment simply needs to be done after installing them anyway.

If possible get exact size struts which is similar to OEM.But if its bit longer,then minor alignment problem will definitely be noticed.

This details will help.

Thanks.

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See below list of some latest solved car problems :-------

Before purchasing Second hand car?

http://schematicsdiagram.blogspot.com/2011/12/before-purchasing-second-hand-car.html

Testing mass air flow sensor?

http://schematicsdiagram.blogspot.com/2011/12/testing-mass-air-flow-sensor.html

Where is MAF sensor located on 2000 Ford Expedition?

http://schematicsdiagram.blogspot.com/2011/12/where-is-maf-sensor-located-on-2000.html

Car won't start without hitting the gas pedal?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html

Ford Keyless Remote Fob Reprogramming?

http://schematicsdiagram.blogspot.com/2011/12/ford-keyless-remote-fob-reprogramming.html

1995 Oldsmobile Eighty Eight has bad O2 Sensor?

http://schematicsdiagram.blogspot.com/2011/12/1995-oldsmobile-eighty-eight-has-bad-o2.html

Dual Exhaust on 1996 Chevrolet camaro z28?

http://schematicsdiagram.blogspot.com/2011/12/dual-exhaust-on-1996-chevrolet-camaro.html

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Friday, December 30, 2011

Car loses power while acceleration?

This problem is noticed on 1994 Chevrolet silverado model.

When you accelerate the car,the amount of fuel flow increases.But if required flow of fuel is not maintained,then engine will starve for fuel and car will lose power due to lack of fuel economy.

In this case it can be problem with fuel filter or distributor cap and rotor.

When was the last time this parts were replaced.If its very long time,then this parts needs to be inspected and replaced.

You need to check the fuel filter again and you can change it if its very old or worn out/dirty. Also check the cap and rotor for corrosion if those turned out to be good and test the fuel pressure when this is happening. It may be dropping down due to a weak pump.If the fuel pressure is checked low,then problem is faulty fuel pump.

Getting this possibilities checked properly will help you to confirm the problem.

Thanks.

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For more Fuel/gasoline related help, follow the list mentioned below: -----

Fuel pump relay and cooling fan relay troubleshooting on 1997 ford thunderbird?

http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html

How to Test and Replace Fuel Injectors on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-fuel-injectors.html

How to replace Fuel Tank Assembly?

http://vwrepairhelp.blogspot.com/2011/11/how-to-replace-fuel-tank-assembly.html

FUEL LINES AND FITTINGS on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/fuel-lines-and-fittings-on-acura-car.html

Replacing Fuel Charging Assembly on Car?

http://vwrepairhelp.blogspot.com/2011/11/replacing-fuel-charging-assembly-on-car.html

How to replace Fuel Pressure Regulator on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-fuel-pressure-regulator.html

How to test Fuel Pressure and replace Fuel Pump on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-fuel-pressure-and-replace.html

PGM-FI Main Relay on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/pgm-fi-main-relay-on-acura-car-models.html

How to Relieve Fuel System Pressure on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-relieve-fuel-system-pressure-on.html

How to Replace a Fuel Injector

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html

How to Replace a Fuel Pressure Regulator?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pressure-regulator.html

How to Replace a Fuel Pump?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pump.html

HOW TO CLEAN A FUEL SYSTEM

http://schematicsdiagram.blogspot.com/2011/07/how-to-clean-fuel-system.html

HOW TO REPLACE A FUEL TANK

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-tank.html

HOW TO REPLACE A FUEL TANK CAP

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-tank-cap.html

HOW TO REPLACE A FUEL PUMP ASSEMBLY

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-pump-assembly.html

Time to replace Fuel pump on 1998 Ford Explorer?

http://schematicsdiagram.blogspot.com/2011/12/time-to-replace-fuel-pump-on-1998-ford.html

Emergency fuel shut switch on Ford car?

http://schematicsdiagram.blogspot.com/2011/12/emergency-fuel-shut-switch-on-ford-car.html

How to jump fuel pump On Chevrolet Silverado 1500?

http://schematicsdiagram.blogspot.com/2011/12/how-to-jump-fuel-pump-on-chevrolet.html

Car won’t start when cold?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html

Car won't start after sitting overnight?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-after-sitting-overnight.html

It sounds like a door is open or window is down on the rear passenger door of crew cab?

Many car owners notice this problem.

If any door or window is open,then do you see any Door ajar indication on dash or do you feel any door is not getting locked properly or window glass is loose.

If not then This can be one of the vents for the cab. There is one in each corner behind the seat.
Properly check to see if it is stuck open or has fallen out of place?

Getting this possibilities inspected will help.

Thanks.

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see below list of solved car problems :-----

Car takes time to Crank and start?

http://howtobyme.blogspot.com/2011/12/car-takes-time-to-crank-and-start.html

Car jerks while going uphill and Check engine light is ON?

http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html

Car turns over, but only starts, if starter is jumped?

http://schematicsdiagram.blogspot.com/2011/12/car-turns-overbut-only-startsif-starter.html

Vehicle will NOT NAVIGATE FROM TPM SCREEN TO MAIN MENU SCREEN?

http://schematicsdiagram.blogspot.com/2011/12/vehicle-will-not-navigate-from-tpm.html

Service Engine Soon light stays on?

http://schematicsdiagram.blogspot.com/2011/12/service-engine-soon-light-stays-on.html

Gasoline around gas cap?

http://schematicsdiagram.blogspot.com/2011/12/gasoline-around-gas-cap.html

Cruise control not working?

http://schematicsdiagram.blogspot.com/2011/12/cruise-control-not-working.html

Car will not run after resetting inertia switch on Mercury Mystique?

http://schematicsdiagram.blogspot.com/2011/12/car-will-not-run-after-resetting.html

No power to the control side of the fuel pump relay?

This problem is noticed on 2000 Pontiac Gran Prix.

This types of problem causes no start problem.
So first try this ,directly wire the fuel pump and see if its working or not.If not,then fuel pump itself is the issue.

First check the basic possibilities like fuel pump assembly, fuel pump relay, straight wired pump to make sure it works, checked fusible links and all fuses in dash and under the hood.

If all checked ok,then go for major troubleshooting.

When you turn the ignition on, Do you see the check engine light?

If you see check engine light on dash,then there is error code stored in cars engine computer module.The module needs to be scanned to retrieve error codes.

Basically in this cases you get steady check engine light on dash.But if you are not getting then try this ...

Manually jump the red to the thick pink at the back of the ignition switch see if that check engine light does come on?

If that lit up all the lights on the dash with the switch turned off or on.

Then try this
With the jumper in place are you able to start the engine?
If yes,then in your case its faulty ignition switch.It has to be replaced.

This details will help you.

Thanks.

--------

See below list of more solved car problems :------

Before purchasing Second hand car?

http://schematicsdiagram.blogspot.com/2011/12/before-purchasing-second-hand-car.html

Testing mass air flow sensor?

http://schematicsdiagram.blogspot.com/2011/12/testing-mass-air-flow-sensor.html

Where is MAF sensor located on 2000 Ford Expedition?

http://schematicsdiagram.blogspot.com/2011/12/where-is-maf-sensor-located-on-2000.html

Car won't start without hitting the gas pedal?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html

Ford Keyless Remote Fob Reprogramming?

http://schematicsdiagram.blogspot.com/2011/12/ford-keyless-remote-fob-reprogramming.html

1995 Oldsmobile Eighty Eight has bad O2 Sensor?

http://schematicsdiagram.blogspot.com/2011/12/1995-oldsmobile-eighty-eight-has-bad-o2.html

Dual Exhaust on 1996 Chevrolet camaro z28?

http://schematicsdiagram.blogspot.com/2011/12/dual-exhaust-on-1996-chevrolet-camaro.html

How to adjust rpm on 2009 dodge charger SRT8?

http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html

Power windows works intermittently?

This problem is noticed on Pontiac Grand Prix GT Year 2002.

In this case
The possibility can be weak regulator and motor - or wires on both drives & passenger side could be pinched or broken.

Get this possibilities checked.

With the windows working partially one side and then partially from another that suggests one of two issues.
The first possible issue is bad to window switches. Everything comes through the main switch in the drivers door, so bad contacts that would not allow proper grounding or proper power even if you use the passenger side switch.
Tied in very closely that is the switch and the passengers door as well. The contacts are used to provide proper grounding so both switches and operate the windows. Any corrosion or poor contacts up either switch to cause this issue.
The second possible option is bad wiring in the booth that runs from the door to the body itself either front door. A break in any of the wires can also cause this problem.

Getting this possibilities checked will help.Thanks.

---------------

See below list of more power window help solutions :--------

All Power windows not working?
http://schematicsdiagram.blogspot.com/2011/12/all-power-windows-not-working.html

Ford F-150 Power Windows Not Working?
http://schematicsdiagram.blogspot.com/2011/12/ford-f-150-power-windows-not-working.html

DIC says "COOLING FAN FAULT"?

This fault is noticed on Cadillac Eldorado car model.

Basically this error code cooling fan fault occurs on DIC when car ac is turned ON.When ac is switched off,the DIC gets cleared.

In this case ......
The first place to look is with the fans themselves.

Do they come on and any other time?

If you manually activate the fans by jumping pins 30 to 87 in the fuse block, do the fans turn on ?

If the fan turns on when you override the DIC module,then its faulty fan control module.

Repairing this module is not a do it your self procedure.And also not many local car professionals can repair it.So the best option is to replace the fan module.But before that inspecting the fan wiring and the fuse block is advisable.

This should help.Thanks.

----------------

See below list of more solved car problems :----------

AUTOMOTIVE EMISSIONS?

http://schematicsdiagram.blogspot.com/2011/12/automotive-emissions.html

AIR POLLUTION?

http://schematicsdiagram.blogspot.com/2011/12/air-pollution.html

Bank 2 Sensor 1 Heater circuit Failure?

http://schematicsdiagram.blogspot.com/2011/12/bank-2-sensor-1-heater-circuit-failure.html

Left bank sensor running lean?

http://repairhelpcenter.blogspot.com/2011/12/left-bank-sensor-running-lean.html

Car cranks, then run for second and then quit?

http://repairhelpcenter.blogspot.com/2011/12/car-cranksthen-run-for-second-and-then.html

How to replace Starter on Infiniti Q45?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-starter-on-infiniti-q45.html

Where is Radio Fuse located on 2007 Dodge charger?

http://schematicsdiagram.blogspot.com/2011/12/where-is-radio-fuse-located-on-2007.html

Trunk button Not Working on Buick car?

http://schematicsdiagram.blogspot.com/2011/12/trunk-button-not-working-on-buick-car.html

EGR Hoses melting?

http://repairhelpcenter.blogspot.com/2011/12/egr-hoses-melting.html

Location of Freeze Plug on 1998 Ford Expedition?

http://schematicsdiagram.blogspot.com/2011/12/location-of-freeze-plug-on-1998-ford.html

Car Engine Stalls While Driving?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html

Diagnostic Code P0540 continue to return and the MIL light is on?

This problem is noticed on
United States Chevrolet Silverado 2500 4X4 of year 2007 with Engine: 6.6 Diesel model.

Car diagnostic code P0540 is related to Intake Air heat code.
In this case The has been replaced.As you mentioned that this code comes up again,this clears that you have replace this module.If you have not replaced this intake air heater module then replace it.But if you have already replaced intake air heater module then , in that case check the resistance of the intake air heater on the passenger front top of the engine . This is the square shaped device with the battery cables on the top right side of the engine. Behind it goes to the top of the EGR valve.

Resistance of the intake air heater will be very low considering a 125 amp fuse feeds it.It will be better to test for resistance over the two parts and see if it is open.
What condition is the wiring in the small plug, and the terminals in that plug to plug into the intake air heater?
Test those back to the ECM? If any connection is loose or shorted then it can be the issue.

Also other thing to be checked is 125 amp mega fuse under the black box on the firewall behind the passenger side battery? Check If that fuse open?If yes then replace it.

Checking inspecting this possibilities will help you.

Thanks.

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See below list of more car diagnostic error code solution :-----