Question about Pontiac Bonneville

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01 bonneville se 3.8L hesitates when gas pedal depressed then surges.also it doesnt want to shift properly when doing this

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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Anonymous

  • 30 Answers

SOURCE: "Sticky" accelerator

no, that's not likely the throttle body. start by looking at the throttle body though, if there are cables going to it that control it, follow the cables back, one should go to the firewall, and one should go to a little black box. that box is you're cruise control unit. chances are that is what's causing the problem (try a salvage yard, they're cheaper than a dealer). however if there is an electric motor controlling the throttle, you should take the car to a shop to have it fixed.

Posted on Jan 24, 2009

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muttandjeff

Allen Neal

  • 359 Answers

SOURCE: No power accelerating or going up a hill

HAVE SOMEONE CK THROTTLE POSITION SENSOR AND CATALYTIC CONVERTER MAKE SURE EXHAUST IS CLEAR

Posted on Feb 03, 2009

VWdan

VWdan

  • 114 Answers

SOURCE: car must have over 1/2 tank or will not idle w/o depressing pedal put in gas and will idle

fuel pump worn out. or pick up tube in tank not right

Posted on Apr 25, 2009

Anonymous

  • 187 Answers

SOURCE: Car backfires hesitates when depressing gas pedal

Check the vacum lines going to the distributor and transmission. If they are leaking it could be your problem.

Posted on May 07, 2009

cb121

  • 1 Answer

SOURCE: i have a 2004 toyota rav4.yesterday the vsc trac

My solution is to get rid of this car immediately!! I had that happen to me. I had my mechanic check it and it was fine about 2 weeks later the car completely died because there is a defect with the 2004 Rav4 2.4l 4cyl. engine. Toyota never recalled this defect and now I am stuck with a car that is worth NOTHING. The top of the engine is put on with a metal/screw that is too soft. It separates and then antifreeze leaks out forcing the car to overheat. There is really no way to fix this besides dropping a new engine. I am stuck without a car and at a total loss. I will NEVER buy a Toyota again. Good luck!

Posted on Feb 16, 2011

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2 Answers

While on vacation, our 2002 six cylinder automatic started acting up. With the gas pedal depressed for normal driving, the car started to "modulate" (the rpms would drop and race back up...


check to make sure airfilter is ok and maf sensor is clean. then check out tps ( throttle position sensor ), here are a few causes of a bad tps sensor--- transmission shift issues, bucking, jerking, idle surging, engine cutoff, hesitation on takeoff, surge while cruising down highway. if light on dash is on get it scanned to find problem code. most auto parts stores will do this for free. auto-zone etc. here are a few symtoms of a bad maf sensor-- surge, slip condition underload. the mass air flow sensor may be degraded or contaminated. stalling, misfiring, poor acceleration. ( a check engine light may not come on ). a lot of times just by cleaning maf sensor cures the problem. GOOD-LUCK!

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Voltage surges on 2003 Bonneville


The alternator requires a minimum rpm to produce sufficient current to power everything, When you take your foot off the gas pedal, the engine rpm drops below the minimum required to produce current. This is common in most cars, and not a problem.

If your battery is more than 3 years old, think about replacement within the year

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My 1998 grand am has the shift lever stuck in park. what can be done to release it so i can drive the car.


Check operation of PARK / INTERLOCK SOLENOID located near brake pedal. Brake pedal needs to be depressed , or you CANNOT shift from PARK. A safety feature . Check for 12V power. Hope this helps

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Transmission is "Hunting"


there are so many sensors nowdays that cause the same problem.---a bad throttle position sensor causes,:transmission shift issues,bucking, jerking, idle surging, engine cut off,hesitation on take off, surge while cruising down highway. a code will not allways set for a problem.

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2000 Volvo S40


one unit that operates ratio changes and is connected to the engine is that vacuum operated actuator on the transmission
it is possible that that unit is failing , vacuum hose is leaking and that will cause ratio changes as the vacuum varies
run the fault codes to check for wiring problems or VSS or TCM problems as well

Mar 23, 2017 | 2001 Volvo S40

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