2004 Chrysler PT Cruiser Q&A

2004 Chrysler PT Cruiser Question: The check engine light is on.

A mechanic checked it for me and said it is telling him it is a missfire problem. I notice also, that the engine compartment is very hot - the hood is hot to the touch. The temp gauge is at the halfway mark -
Answer 1
A misfire can be caused by engine mechanical issues due to low compression, it can be a fuel issue (bad fuel injector or vacuum leak) or it could be ignition related (spark plug, ignition coil or plug wire were applicable).P0300 is a general misfire code affecting one or more cylinders P0301 through P0304 identifies which particular cylinder is misfiring but tests need to be done to see where exactly the problem is. A "lean running" misfire condition can cause an engine to run hotter. And an engine that is running poorly because of a misfire can run hotter. -
Comment 1
Thanks so much for this info! My mechanic is out of town til Monday so will see him then. I am going to print your reply for him to see. I did notice the light going on after most fill-ups of Costco gas. Wonder now if I am in trouble for always using regular when the car recommends premium... Anyway, thanks for your time trying to help me out! -
Related Items:
I have a 2005 pt cruiser base with 58000 miles, so i turned on the car the check engine turned on , but I kept driving and at my street corner my battery light turned (also i felt that it had troub...
Appears to only miss, studder when ac is in operation. Also hesitates when accelerating from id...
My check engine light came on last week. it went out for about a day but has been on now for a couple of days. The manual says i can drive the car for a few normal cycles to see if the light stays ...
My check engine light started to come on. It would go out on its own. Now it also occ flashes. I had the spark plugs and wires replaced and then coil pack replaced. It came on again when the car wa...