Question about 1996 Chevrolet Cavalier

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Rough idle on my 98 cavalier

Car starts but has rough idle

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 43 Answers

SOURCE: 98 cavalier 2.2L cold misfire/no start

You may be looking at dirty injectors. I would run a good quality (something like Wynns or Redline) fuel system cleaner through, following the directions on the bottle twice. Which usually means adding the bottle to a full tank of fuel, and then adding another bottle after a second fill. Check for improvement, this will cost under $30, vs a trip to a mechanic. A friend of mine had a 2.2l in a sunfire that did something very similar and a good cleaning cleared it up completely. Unfortunately, he spent $300 at a mechanic to find out.

Posted on Jul 14, 2009

  • 170 Answers

SOURCE: rough idle on 1999 chevy cavalier z24

Check for vacuum leaks. Spray some carb cleaner or WD40 around the intake manifold, trottle body and any vacuum lines. Check for loose connections on engine wiring harness (Maybe you disconnected a sensor, and forgot to re-attach it?).

Posted on Aug 20, 2009

  • 1986 Answers

SOURCE: 1997 2.2L base Cavalier idles rough and randomly stalls

Have they checked your TPS sensor as this is the most common cause for rough idles and stalls...

Posted on Aug 21, 2009

  • 198 Answers

SOURCE: my 98 cavalier is running really rough, sounds terrible

If you can have the fuel pressure checked and compared to factory specs.There may be a leak in the line or where the fuel line connects to the filter.Your going to have to follow the fuel line visually from the fuel rail/injectors to the tank and check for dripping or moisture.I beleive it may be either that or the fuel pressure regulator.

Posted on Sep 14, 2009

  • 92 Answers

SOURCE: 1996 Chev Cavalier chugging and stalling running rough idle

Bad injectors causing the vehicle to run poorly can cause other damages to sensors etc. Buy a code reader and check the codes.

Posted on Apr 06, 2010

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1 Answer

96 chevy cavalier idles rough black smoke from exaust and spark plug are very black


I had same issue with my 98', after replacing plugs,wires,map sensor,searched time and time again for vac leaks,both o2 sensors etc.the negative terminal wire from battery to engine was slightly loose at the engine.I pulled that end off and cleaned and tightened and ran like a champ immediatley! Only reason i found that problem was accidental,when i was shaking some wires around it arched at that spot.

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1996 Chev Cavalier chugging and stalling running rough idle


Bad injectors causing the vehicle to run poorly can cause other damages to sensors etc. Buy a code reader and check the codes.

Apr 06, 2010 | 1996 Chevrolet Cavalier

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MASS AIR FLOW ENTIRE UNIT(I GOTTA 1987 FIREBIRD FORMULA AND THE SAME THING HAPPENED TO ME)

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It is an O2 sensor problem and it is usually bank 1 the rough idling could be the egr valve trying to compensate. Good luck

Sep 19, 2009 | 1998 Chevrolet Cavalier

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My 98 cavalier is running really rough, sounds terrible


If you can have the fuel pressure checked and compared to factory specs.There may be a leak in the line or where the fuel line connects to the filter.Your going to have to follow the fuel line visually from the fuel rail/injectors to the tank and check for dripping or moisture.I beleive it may be either that or the fuel pressure regulator.

Sep 13, 2009 | 1998 Chevrolet Cavalier

1 Answer

1997 2.2L base Cavalier idles rough and randomly stalls


Have they checked your TPS sensor as this is the most common cause for rough idles and stalls...

Aug 21, 2009 | 1997 Chevrolet Cavalier

1 Answer

98 cavalier 2.2L cold misfire/no start


You may be looking at dirty injectors. I would run a good quality (something like Wynns or Redline) fuel system cleaner through, following the directions on the bottle twice. Which usually means adding the bottle to a full tank of fuel, and then adding another bottle after a second fill. Check for improvement, this will cost under $30, vs a trip to a mechanic. A friend of mine had a 2.2l in a sunfire that did something very similar and a good cleaning cleared it up completely. Unfortunately, he spent $300 at a mechanic to find out.

Jul 14, 2009 | 1998 Chevrolet Cavalier

1 Answer

Myservice engine light came today rogh in idle at light rpms seem a little high this is a 98 saturn sl2 I think engine is a 1.9


the check engine light means that a code has been set. the code will reference a faulty system that must be diagnosed and repaired. sorry for the vagueness, but there are e gads of codes that can cause the rough idling

most aftermarket parts places will scan the car for free. this will give you an idea of where to start.

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