2001 Saturn L100 Repair Question
Mileage: 95,000 miles.
Why wont the car start on a new coil but it will the old one? and it misses.
Asked by JrscarsAnswer
Could be a bad connector or a defective coil. New parts being defective are rare, but they happen. Make sure the crankshaft and camshaft position sensors are functioning properly, as well.
Just to add to this one does it only miss at idle or thru out the rpm range?Those engines that year are known for jumping timing chains?
Thanks for the quick replies. I ruled out the cam sensor because it wouldnt be so specific to which coil pack was on it, but maybe I have 2 problems. The car has most of its coughing at idle, worse in gear and with ac on. Off idle its much better,almost not noticeable.
Does the cooling fan run all the time?
no, the cooling fan cycles as it should.
At the dealer they sold you a single coil?When i worked at the saturn dealer they only came as a coil cassette both coils housing etc without the ignition module.
yes, to clarfy, i am refering to the coil as singular, but it is the assembly you are refering to. the module was replaced first when it had no spark at all. i have since run fuel injector cleaner through the injectors to rule them out as a problem, sure enough, no change in the miss, worse when its cold and/or under load.
Ok so you replaced the coil cassette/assembly are you sure you didnt get a bad module?Because you said it went from a no start to runs great to now runs poorly.
no, im not sure its not a bad module, just thought it was unlikely. my next step was going to be to find a coil assy off of the same car and try it. i can do the same with the module.
Thats a great idea i keep a spare coil cassette complete with module for a quick swap out makes trouble shooting a lot faster.Keep me posted on what you find.