Question about 2002 Audi A4

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Starting problem i have changed the plugs in my car also the coil pack still have problem no and again

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WHATS THE PROBLEM?

Posted on Jul 22, 2009

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Posted on Jan 02, 2017

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Initial start up the engine sounds like its running on 2 cylinders under powered intil the temp gauge reads normal ???? any body got the answer please


Cold starting misfires can often be caused by either tired high tension spark plug leads or ignition coil packs. If replacing leads, then replace with a full, new set. Coils can be changed individually, but it is often the case that if one has failed, then the others aren't far behind. Some cars have individual coil packs on each spark plug. Some cars have a single pack for all plugs and some have coil packs which may control two or more plugs.

To check for a misfire (ignition failure) follow these steps:

(Cold start) (Use a pair of insulated pliers)

1) Start the vehicle

2) When the vehicle starts misfiring, disconnect plug leads or coil pack connections one at a time. If the vehicle idles even more roughly, then that plug or pack should be considered fine.
Replug each connection before disconnecting the next one. Once you disconnect a plug lead or coil pack connection and find no difference in poor engine running, then you have likely found the offending cylinder. Check the spark plug condition, lead and/or coil condition and connections on that cylinder.

3) Replace components as necessary.

Oct 12, 2014 | Cars & Trucks

2 Answers

What would cause a 2003 chevy impala's coil pack to break down?


did u reset the computer after changing coil pack - I was told anytime you put a new electrical part on newer cars the comp has to be reset otherwise the comp don't know that a new part has been installed!!

Aug 10, 2014 | 2003 Chevrolet Impala

1 Answer

Bad coil pack


If your truck has spark plug wires, you will want to change those as well, as a bad wire can cause an ignition coil to short itself out internally.

Jan 26, 2014 | Toyota Tacoma Cars & Trucks

2 Answers

The engine light came on in my 2003 Honda civic LX. My mechanic stated code was misfiring on cylinder 3. He changed the coil pack and reset the engine light. The car still seems to misfire when it is...


If you pull the plug wire from the spark plug on cylinder 3, is there any oil, water, or antifreeze in there? Have you removed the plug to see what condition it is in? If it is black or oil-fouled, you should replace it, or better yet, the entire set of spark plugs. When the coil pack was replaced, was the plug wire replaced as well? I have seen a stuck fuel injector cause your problem before, because the cylinder does not get the right amount of fuel, running either too lean, or too rich.

Apr 21, 2017 | Cars & Trucks

1 Answer

Car won't start after changing spark plug


make sure the electrical plug is clipped on securely.you may have damaged the coil-pack that you are calling plugs.remove it again and place one of the old plugs in it and see if you get a spark when someone cranks the engine for you.If not replace the coil pack.

May 30, 2009 | 1997 Pontiac Grand Am

1 Answer

1991 lesabre wont start after shutting down. If it sits a few hours starts up great again. changed plugs, plug wires, coil pack, and Ignition control module but still same problem. ran a little rough but...


Best to do a fuel pressure test, pump might be weak and dosent show up until it gets gets warm. Best to do the test after it quits again when pump is at its hottest. If you havent done it yet chg. fuel filter too.

Mar 26, 2009 | 1991 Buick LeSabre

1 Answer

Freelander shuddering and gerking when accelerating in 3rd & 4th


More than likely you are having an engine missfire. They are reknowned for problems with the coil packs that produce the spark for the plugs. They it up the road and labour the engine until it does it on full throttle. then back of the throttle to see if it stops. |Then back on to see if it starts again. Most likely it will. Change the plugs first. this will probably cure it short time as new plugs reduce the load on the coil packs. Best change coil packs though also.
Cheers
John

Jan 08, 2009 | 2004 Land Rover FreeLander

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