Question about 1997 GMC Jimmy

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Engine RPM slows or engine almost dies when i apply brakes in park or in drive

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LISTEN FOR HISSING UNDER DASH ON DRIVER SIDE. SOUNDS LIKE YOU HAVE A VACUUM LEAK IN BRAKE BOOSTER.

Posted on Jul 28, 2009

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3 Answers

Why does my car jerk when i change the transmission from park to drive


the idle RPM is too high
or its just too cold,
how cold is it outdoors?
idle speeds cold can be about 1500 RPM/ cold.
and will ****.
it jerks because you are taking 0 torque from engine
and the sending that to a stalled rear axle.
this cause a ****, that is why the park lock out requires Brakes on
so yo dont run over things.

Oct 07, 2013 | 2005 Toyota Corolla

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Vibrates at idle RPM


Duplicate question.

May 17, 2013 | Cars & Trucks

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1990 jetta parking brake release kills engine


Okay, so the car's engine is running, and you're in drive but it's not going? It sounds like your transmission needs service.----------------------------------------------------------------------------------------
OPEL KM TOOL

Mar 19, 2013 | 1990 Volkswagen Jetta

1 Answer

When i shift car from P to R or D the rpm suddenly goes to zero and then suddenly goes to approx 2000 rpm.


that should not effect the driving of the car,it's do to the loss of connection in the gear shifter.

Dec 20, 2012 | Cars & Trucks

1 Answer

My 1988 lincoln town car dies when shifting


check your servo check valve. looks like you are having a vacuum leak on brakes because both occasions you are using brakes.

Sep 01, 2012 | 1988 Lincoln Town Car

1 Answer

1996 GMC jimmy rough idel and dieing when driving.


i have seen many strange things happen with the distrib cabs on these

Aug 22, 2012 | 1996 GMC Jimmy

2 Answers

Must foot be on brake when shifting gears in automatic trans


The damage potential is with accidental shifts out of PARK, such as with kids playing around or the accidental shift by an otherwise occupied driver. To prevent accidental shifting out of PARK, car makers years ago started installing the safety interlock which requires a foot on the brake pedal before shifting out of PARK and putting the car in motion. No damage potential in shifting between other gears, as long as the vehicle is stopped. I hope that this answers your question and wins the debate for you.

Nov 30, 2009 | 1998 Toyota Camry

1 Answer

Engine runs at 1400 rpm , when brake is applied engine slows to 700. At every press of the brake engine speed drops from 1400 to 700


The most likely problem is you have a bad valve at your power brake booster, or the brake booster itself is bad.

Sep 14, 2009 | 1993 Toyota 4Runner

2 Answers

I HAVE A 1998 CADILLAC CATERA V6 AUTOMATIC ENGINE DIES IN DRIVE


Yes, most likely a fault in the auto transmission, and the car has shut itself off to prevent further damage.

Aug 03, 2009 | 1997 Cadillac DeVille

1 Answer

Dash lights go dim when braking and just odd times driving


Possibly have the Wrong Amp Rating Alternator
Also Check all Grounds under Hood And Engine to BODY GROUND

Jan 13, 2009 | 1988 Pontiac Firebird

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