Question about 1996 Chevrolet Cavalier

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1996 cavalier running rough at idle

Running rough at idle and runs great while driving. have cleaned throttle body and ran higher octane gas. Now the engine light is on and problem is still there.

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Check the fuel pressure regulator, mine broke the diaphram and was dumping fuel in it

Posted on Jun 20, 2009

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Check or change your map sensor

Posted on Dec 14, 2010

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4 Answers

2002 Cavalier starts then dies. Started about 1 week ago. Let sit overwrite started fine next afternoon. Ran great for several hrs. Started dying again. Replaced fuel filter, Ran great for a day. Now it...


Had a 89 cavalier did that start then die it map sensor. Also check ground wires if the become too corroded they won't start sometimes just run weird

Jan 21, 2015 | 2002 Chevrolet Cavalier

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2001 altima stalls at intersection or when AC is running and car is hot


No to the high octane gas. Regular gas is fine. Higher octane gas is more resistant to ignition and is better suited for high compression engines to prevent preignition and detonation. Check or replace your idle air control valve since the car stall at idle when the throttle blade is closed. If the IAC is not working it won't allow for air to bypass the throttle plate. Also have your throttle body cleaned.

Jul 22, 2014 | 2001 Nissan Altima

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1998 idles too high at startup when cold SOHC 4.0 ford explorer


Try spraying carb/throttle body cleaner around the throttle body after the truck is warmed up all the way get someone to sit in the truck with it in drive and there foot on the brake if the idle raises there's a vacuum line leaking or your throttle body gasket is leaking if no increase in idle then thoroughly clean out the throttle body with the spray if it's very dirty inside the varnish from the fuel burning is causing the throttle plate to stick or stay open causing your engine to have increased rpms if your using no name brand gas stop now your killing your motor the major brands have detergents in the gas to keep things clean and better mpgs brands like usa Valero speedway delta liberty are all garbage and should only be used in an emergency situation like you're going to run out also if you are using this junk get 2 cans of Berrimans fuel system cleaner and put it in the gas tank every week for a month or so this will clean out the emissions and gas tank of the dirt and varnish from bad cheap gas I say 2 at a time because the super strength is needed to clean out the gunk and keep using it at least 1 can a month with good higher grade fuel 93 octane for about 2 months after then either stay at 93 or go to 91 or 89 not 87 ///// now the reason for the higher octane fuel is this the higher the octane level the slower the fuel burns and cleaner more efficient burning with the cleaner combination to get out the gunk your truck will run much better and mpgs will increase now post back with progress write down everything you've done and we will take it from there if the problem persists but I don't think so I'm a taxi mechanic in nyc.with 50 years experience so that's where the information is coming from and a lot of the cars have 300,000 to 450,000 miles on them so I would say you should listen to this advice they are ford crown Victorias and are original motors good luck stephen

Dec 11, 2017 | 1998 Ford Explorer

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Rough idle cold or warmed up,runs great on highway


tune up,fuel filter,air filter,clean throttle body.

Mar 09, 2013 | 1996 Ford Thunderbird LX

1 Answer

Rough idle, gas fumes, sputters while driving


You have an air leak around the throttle body

Sep 21, 2017 | 1988 Jeep Wrangler

1 Answer

Idles rough when in park and drive


Clean ur throttle body takes 30min cleaners only 8$ at aurozone and there good how to videos on you tube my truck always had rough idle bur got to wear if I stopped withoit my foot a little on the gas it woild die it had me worried but cleaned thrortle body it runs perfect

Sep 30, 2012 | 2003 Chevrolet Cavalier

1 Answer

How do you clean a throttle body on 1999 s70?


try this b4 taking things apart... redexe/wynns fuel additive and using high octane fuel the computer will adjust running accordingly...

Mar 08, 2010 | 1999 Volvo S70

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My daughter has a 1996 cavalier 2.2l and it has a rough idle like a lug sound it runs fine and everything sounds great going down the road but just when it idles its a bit rough We changed the fuel pump in...


The fuel filter is only about 5 bucks worth of work/material. Most of the time you have to get 3/8 fuel line and clamps and a filter with male adapters and just cut out the old one. But it's still a 20 minute job. Also try some dry gas or fuel treatment. If you change it and it's still acting up I think a Vacuum leak or a weak coil is the culprit. Hope this helps.

Jul 23, 2009 | 1996 Chevrolet Cavalier

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