Question about 1992 Chevrolet Caprice

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My 92 caprice 305 stalls at idle or slow driving speed. I have a new catalytic converter,and recently had a tune up...any help??????????????

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: 91chevy caprice hesitation

could be a vacuum leak, also get rid of the quadrajunk carb it will prolly help

Posted on Mar 23, 2009

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SOURCE: 1991 Caprice Classic 305 engine surge

Sounds like the throttle position sensor to me. I have a 1991 caprice wagon and I have to replace this part every 6 months or so. It's a cheap easy to replace part, around $25, but I haven't been able to find one that will last like the OEM. It's just a variable resistor that tells the computer where you have the gas pedel. When it fails it tells the computer you're giving it gas when you're not.

Posted on Jul 12, 2009

Wood Chuck
  • 29 Answers

SOURCE: 1995 CHEVY VAN 20 305 WONT IDLE

Check your fuel pump presure. Pump is in the tank. Also try and loosen the fuel cap, the tank vent may be stopped up.

Posted on Sep 15, 2009

  • 540 Answers

SOURCE: 2000 CHEVY EXPRESS 1500 4.3L V6 ENGINE STALLS AT

need to run a fuel pressure test.. plugged fuel filter, and defective fuel pumps are common on this vehicle..

Posted on Nov 29, 2009

kirkx
  • 2019 Answers

SOURCE: 98 Ford Explorer engine/exhaust noise

When catalytic converters go bad, the porcelain matrix inside comes loose and is noisy.
But you can just unbolt it, break up the loose chunks, pour out the pieces, and it will run better than ever.
If you don't pass the next emissions test, then replace it.

But it could just be the heat shield rattling instead.
Take the shield off first, to see if it goes away.

Posted on Jan 03, 2010

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1 Answer

How to check the idle speed? my car stalls at the light


Hello Patricia Kennedy.

Besides a dirty air filter... listed below... idle air control valve... the idle speed is pretty tamper proof...

If the car has not been tuned up RECENTLY... that would be a STRONG recommendation before fine-tuning the idle speed.

The problem I am seeing ALL OVER the web... is the idle is too fast... (absolutely will cause STALLS).

All things being reasonable... your tachometer should show an RPM OF 650 to 1000 rpm... above that is quite EXCESSIVE...

A real TUNE-UP MANUAL would be required to properly set the SPEED ... but only after EVERYTHING had been serviced, cleaned and replaced...

Tuning up a car with DIRTY FILTERS & WORN spark plugs is an WASTE of MONEY!!

What I am seeing EVERYWHERE... is a HIGH IDLE problem... (above 2000 RPMs... That will ABSOLUTELY cause your car to stall at a STOP... because your TORQUE CONVERTER is designed to lock up (quit acting like a clutch)...

If your idle speed it above 1000 rpm... that WAS a BIG RECALL issue for GM engines...

Check out the links below... a high idle can stall an engine better than a low one...!!

Comment me back if I am not being particularly clear... or wwatch some of the videos I have attached.

Good luck.


More Information for ACDELCO A1208C
2005 buick rendezvous idle setting Bing video More Information for STANDARD MOTOR PRODUCTS AC5T

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1 Answer

1991 ford ranger 2.3L manual, no air, lopes underway, wants to stall at take off. What is cause?


The problem could be plugged up catalytic convert it is related to tune up.One more thing fuel filter too. Check auto zone if they have anything to burn out catalytic.When you change with standard catalytic you will have code PO420 will be a headache!!!!!!!! 80% cars have this problem Think twice before doing anything.

Apr 14, 2017 | Ford Ranger Cars & Trucks

1 Answer

My 1992 caprice keeps dying when its cold


Here are the more common cause of surges, stalls at stops, slow idle speed, erratic idle, it is in most cases the idle speed control air-bypass valve and/or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving

Mar 22, 2014 | 1992 Chevrolet Caprice

1 Answer

2007 Mitsubishi Endeavor stalls out when idle. Recent tune up (NGK iridium spark plugs used). Initially wasn't stalling out but running rough during idle. Check engine light was on prior to tune up...


Most of the times is just an air leak from a vaccum hose. Also since the code its for only cylinder #6 I would suggest to take a look at the coil pack. They do go bad and it will affect your cat converter reading due to the fact that gas is not being burned on that cylinder.
I hope this helps!

Mar 27, 2013 | Cars & Trucks

1 Answer

Idle low


Low fuel pressure or clogged catalytic converter. Temporarily remove one of the O2 sensors and take it for a test drive. If the engine accelerates better then the exhaust is plugged (removing the sensor leaves a hole for the exhaust to escape) . Have the fuel pressure tested if it's not a plugged cat.. It could be a weak fuel pump.

Jul 21, 2009 | 1988 Ford F 150

2 Answers

Mitsubishi space star (x reg) stalling on idling and on stopping


This problem apears when the battery has been diconected for some time. Start the car, and leave in in idle without driving it for about 10 min. The car runs fine after that.

Mar 11, 2009 | 2006 Mitsubishi Colt

3 Answers

95 cadillac eldorado engine stalls rough idle check engine light is on


I have a 1994 Cadillac Eldorado and every time i start it the car has rough Idle and the Idle fluctuate's. I also can feel it in the gas pedal when the car is doing this I tried replacing the throttle body sensor but it still does it I also was told it was the Idle error sensor. So instead of spending the unecessary money again I thought I would go online and see if anyone could help me with this problem.

Sep 30, 2008 | 1995 Cadillac Eldorado

2 Answers

1998 Hyundai Excel stalls when idling or low gear?


new sensors or reconditioned ones from a scrapyard,best bet is main dealer

Sep 29, 2008 | 1994 Hyundai Excel

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