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05 chevy trailblazer is stalling and accelerating with foot on brake

breanna Oct 09, 2013

check engine light is on and did the OBD test. Test showed codes for thermostat and sensor, had both of them replaced, and still have same problem as before

1 Answer

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Chevrolet Master 20,706 Answers
Posted on Oct 09, 2013

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Chevrolet Master

Joined: Apr 06, 2013

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It can do both at same time "AND"
unless you meant
it surges, then stalls.

hot or cold, or both (hot or cold engine block)?

You must not be in park, but in DRIVE,
tell the full story,starting from keyon.
or take it to a live person that can see this.

5 Related Answers

Anonymous

405 Answers
Posted on Jun 29, 2008

SOURCE: stalling

Good Day,

There could be several causes for this. If I were you the first thing I would check is the timing. If the timing is off enough it could cause this. After timing is checked and/or adjusted the next thing I would check the MAP(Manifold Absolute Pressure) Sensor. I can't remeber if a 91 is fuel injected or carburated, but if it is carburated I would check the carb jets and up the idle adjustment just to see how it would run. Do you have a check engine light on in the car? If you do it's more than likely a sensor either the MAP or TPS(throttle position sensor). If you do not have a check engine light on it's got be timing or something else mechanically.

Here's a place to start.
Let me know about the check engine light and I can assist further.

Hope this helps

Anonymous

3 Answers
Posted on May 19, 2009

SOURCE: front brakes

Antilock brake systems don't like fluid pushed back through the system.

You should follow good standard practice, by blocking and ensuring the car is stable and safe.

When the wheel is removed, clamp off the flexible brake fluid line. When you push he caliper back to change the pads, do it with the bleed screw open and catch the fluid that comes out. When the caliper is fully depressed, close the bleed screw up. Change the pads, ensure you put anti-squeel on the outter surfaces. Inspect the clips, ensure they are all seated properly.

Check the runout on the rotor, make sure it's not warped. Get them turned or replace them as necessary.

When done, reinstall everything and remove the clamp.

Start the truck, pump the brakes a few times to get fluid back to the front calipers. Inspect the fluid level in the resivoiour to ensure enough fluid is there.

Do some safe test brakes to ensure all is ok.

Anonymous

6982 Answers
Posted on May 27, 2010

SOURCE: only when i press on the gas or accelerate the

A noise can come from anything that moves while the engine is running. What you really need to do is listen carefully from outside the vehicle with the hood open and try and get a better idea where the noise is coming from.
It sometimes helps to use a short piece of old garden hose as a directional listening device...one end on your ear the other end as a probe. Wherever you hear the noise the loudest, is likely the problem or very close to it. If the noise is an internal knocking, likely it is a bearing problem that requires intensive work to correct. Hopefully that's not what you are hearing, Oil pressure good? Serpentine belt tight?

Harvey N Tawatao

3854 Answers
Posted on Jun 15, 2010

SOURCE: 2006 Chevy Trailblazer makes THUD when accelerating

Check your coolant level, low coolant or air in your cooling system will make a "thud"noise in your heater core when the engine is under load from acceleration. The coolant rushes in to the heater core where the air pocket is trapped and then your hear the noise.
Start with the simple and make sure your coolant level is correct and then try to purge the system to remove the air out for your coolant system.
Thank you for using fixya and good luck

luis

500 Answers
Posted on Sep 02, 2010

SOURCE: 1985 mercury grand marquis. Starts then stall,

maps sensor

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There are many other possibilities.I suggest you to go through the list of help links mentioned below,these will help you to confirm where the actual fault lies:-------
Jerks and Hesitates During Acceleration? http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html
-----------
Loss of acceleration? http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

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Headlights flickering and car hesitates to start? http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

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How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

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How exactly Vehicles Accelerator Pump Diaphragm Works? http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

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Wheel hop under hard acceleration? http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

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2009 Chevy impala accelerator pedal sensor? http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

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1985 mercury grand marquis. Starts then stall, usually more then once. Once started motor surges and then may stall again when put in reverse. Motor surge continues as you begin to accelerate and...

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Feb 24, 2010 • 2005 Chevrolet TrailBlazer

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05 chevy trailblazer is stalling and accelerating with foot on brake

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Related Questions:

Brakes on my 05 trailblazer locked up while driving and the vehicle won't move.

I have a chevy s10 2.2 2003 truck and one day it ran about five miles. then stalled. it started back up idled fine but put it in gear. stalled again. had to get towed home replaced the fuel filter,truck...

Chevy 2500 4x4 truck,, wont excelarate right, acts like its running out of gas, good fuel pressure, new mass air flow senser, still does it... any ideals???????

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

Wheel hop under hard acceleration?

2009 Chevy impala accelerator pedal sensor?

Nissan Pathfinder stalls and bucks on Acceleration?

Acceleration lag problem?

Mazda 323 bj not exccelerating

Jerks and Hesitates During Acceleration?

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Headlights flickering and car hesitates to start?

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How exactly Vehicles Accelerator Pump Diaphragm Works?

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Acceleration lag problem?

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1985 mercury grand marquis. Starts then stall, usually more then once. Once started motor surges and then may stall again when put in reverse. Motor surge continues as you begin to accelerate and...

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