2001 MONTE LS 3.4 I STARTED THE CAR AND IT SEEMS LIKE IT IS MISSING AND THE CHECK ENGINE LIGHT CAME ON DID ANYONE EVER HAVE THIS PROBLEM IT HAS 60,000 MILES ON IT, THANKS.

 

Could be any number of things...if you have any more info or a better description of the problem that would help.

If nothing else take the car to an Autozone or similar parts store, they will be able to do a quick scan and get the trouble codes...that will be a start in the right direction.

 

I TOOK IT TO A LOCAL SHOP THEY RAN THE CODES AND SAID IT SHOWED A MIS FIRE ON #4 CYLINDER IT HAS NOT DONE IT SINCE THEN.

 

Check the spark plug wire to make sure it is on secure and not damaged on the plug and the coil. Also check the plug itself.

 

If the spark plugs have never been changed, that is definitely where I would start.

 

i agree, change the plug, maybe even wires. if the same problem occurs still you may have an injector sticking and bleeding down fouling the plug and saturating it with gas....it may happen once in awhile but not all the time. Injectors dont usually go bad but they can ocasioanlly stick in the way i described, yet still run fine for months without a trace of trouble. Drivability problems are fun....NOT

 

Also check to make sure it is properly gapped. Too much gap can increase the chance of a misfire because the spark wont always occur.

 

i had a similar problem with my 03 ls.the dealer diagnosed it as a broken rocker pulled out of cylinder head.they helicoiled it and reinstalled. a month later,same thing ,oppisite head. now 5 months later its doing it again.ive got 62000mi,and take very good care of it. has any1 else had that problem?

 

I would guess the coil packs are starting to give you problems, if the wire and plug are OK. These platinum plugs will last forever. I changed plugs and wires in my '01 SS LE, and still had the same code. Plugs were almost new at 85k mi, but spent way too much money and put new ones in anyway.

http://www.cardomain.com/ride/2319272

 

its not the coil packs .the dealer called me and said they fixed the rocker stud (again),and when they went to start the engine the stud and the heilicoil pulled out.now theyre gonna have to replace the entire head.WTH! time to trade it in !!!!!!!!!!