Question about 1995 Pontiac Sunfire

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ROUGH IDLE WITH NO CODES

JUST REPLACED PLUGS/WIRES/COIL PACKS

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  • 328 Answers

Mostly like clogged or failing injectors, try chevron techron fuel injector cleaner run it for couple days n see it improves if not ull need a noid tester on the injectors

Posted on Feb 26, 2015

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Posted on Jan 02, 2017

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SOURCE: 99 Grand Am 3.4 Won't start

first you must check for bad cable connections , next step in the next post

Posted on Nov 03, 2008

blueextc3221
  • 15935 Answers

SOURCE: car wont start

I noticed you replace the crankshaft sensor, but not the CAMshaft sensor.
The Ignition module takes the input of both sensors to tell the coil when to energize.
This sensor should come up as an error code when you attach a obd reader.
Even if your light is not on - there may be a code. If it is not your vehicle originally, some people pull the bulb!

Posted on Jan 22, 2009

  • 73 Answers

SOURCE: 1994 pontiac transport se not firing in first coil pack at idle

ARE YOU CHEKING SPARK OFF THE COIL TOWER OR AT THE SPARK PLUG END OF THE WIRE SOUNDS LIKE YO HAVE A BAD WIRE

Posted on Apr 24, 2009

csmock132
  • 4669 Answers

SOURCE: 2001 grand am se1. Rough Idle - Spark Plugs and Spark Plug wires

What engine? You need to have it scanned for codes. Autozone will do this for free

Posted on Sep 01, 2009

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  • 1 Answer

SOURCE: own a 1996 Grand AM GT 2.4 quad 4..manual...engine

engine missfire won't start

Posted on Dec 13, 2009

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1 Answer

Nissan exterra running very rough at idle and even


check engine light on ? check your wires for crack rips coming from the coil packs , the coil packs themselves or the spark plugs check for oil on them

Sep 01, 2014 | Nissan Xterra Cars & Trucks

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Rough idle on 97 Pontiac sunfire with no check engine light or error codes...Both coil packs, ignition control module, spark plugs, and spark plug wires have been replaced


could be fuel , try a fuel addative , get one that covers the catalytic convertor as well as the valves , injectors etc,look for any signs of wear/damage to vacuum and air hoses

Jun 29, 2014 | Cars & Trucks

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What would cause it to idle rough


MANY THINGS CAN CAUSE IT TI RUN ROUGH. IS YOUR CHECK ENGINE LIGHT ON? IF IT IS GO TO AUTO PARTS STORE HAVE THEM RUN A SCAN ON THE CAR AND IT WILL TELL YOU WHAT TO LOOK AT TO SOLVE THE PROBLEM. THINGS THAT CAN CAUSE A ROUGH IDLE: BAD PLUGS, BAD COIL PACKS, VACUUM LEAK, BAD CAM SENSOR,BAD PLUG WIRES, TO NAME A FEW.

May 06, 2014 | 2002 Ford Explorer

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ROUGH AND POPPING IDLE WITH NO CODES


Check compression, may be a burn valve

Apr 21, 2014 | 1995 Pontiac Sunfire

1 Answer

Rough idle want stay running 97 3800 firebird


check your spark plugs ,wires an coil packs make sure your coil packs are grounded meaning that the screws holding down the coil packs make sure that there tight

Dec 09, 2013 | 1997 Pontiac Firebird

1 Answer

Rough idle


What about the coil packs? Do you have a check engine light on? If so take it to an auto parts store and see if they will scan your vehicle for the codes.

Oct 19, 2013 | 2007 Dodge Caliber SXT Sport Hatchback

2 Answers

Car is idling rough all coil packs have been changed along with spark plugs


Dont get another harness. If you are using Autozone supplied coil packs, the problem is most likely the coils from Autozone. I have went through this exact same thing before. I changed the coild because one had a burn mark on the boot between the plug and the coil pack. I noticed it when changing spark plugs. The new coil from Autozone made the vehicle struggle on take offs and idle rough and the vehicle had no power. I installed another coil from Autozone again which was supposedly a better model and costed more. The vehicle ran a little smoother but the rough idle and small misfire was still there. I installed another coil from the dealership and the problem was fixed immediately.
I also replaced one of the coil connectors for a different cylinder but only because i broke it when disconnecting the coil packs to remove the spark plugs.
And when I installed all my coils and the new one from Autozone, I used dielectric grease on all the connectors. But the rough idle and power loss was immediate following installing the new coil from Autozone.
Beware if you are using coils from another part store because many part stores get their parts from the same source.

Jul 18, 2012 | 1996 Volvo 960

1 Answer

2002 kia sedona 3.5l has rough idle replaced plugs wires and coil


this vehicle has coil packs for the ignition correct? have you ran the engine at night with all surrounding lights outs so its really dark. spray a mist of water on the coil packs and spark plug wires to see if you have spark/voltage leaks jumping out from them. sometimes the tiny sparks will be so fine and skinny you can barely see them so it needs to be dark. hope this helps your trouble shooting. a coil pack could have such a fine crack for the voltage to leak from that you cant see it.

Jun 13, 2009 | 2002 Kia Sedona

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