Recent content by grmpyoman

Okay, we got this thing figured out. With the help of a good mechanic that I know he told me these engines will not run on low octane fuel. It was acting up again and he told me to put good 91 octane fuel in it, after I did with a little bit of octane booster, it is running beautiful.

Ok. I hope this helps someone out there, we've got this thing figured out. Cheap gas. These engines will not operate on cheap gas. It's got to be 91 octane . My buddy told me about this, I went and added some octane booster to what was already in the tank, and topped it off with 91 octane, and...

If you're using regular gas that may be your problem. High octane ONLY IN THAT ENGINE.

I don't know if this will help, but this happened to me also. Misfiring all the time put new plugs and replace some of the coils and it kept coming back. After I talk to my one of my good friends at work who is a shade tree mechanic, he asked me what grade of gas I was using. I said the cheap...

So if my engine computer is bad what options do I have? Is there any way to "flash " it or reprogram the stupid thing or does it need to be replaced?

Maybe I'm missing something here. But my question is why when I disconnect the battery, does it run perfectly for a day and a half, then start running badly again.

Got under the hood, pulled the coils and plugs on 1 3 5, plugs looked brand new, gapped correctly. Switched the coils 3 to 5 and 5 to 3. Disconnected batt to clear codes, about 20 min. Started It up, ran beautifully for a day and a half. Then started misbehaving again, codes same but didn't...

Hey everyone. I'm driving a 03 with 3.7. 180.000 miles. This thing is running really bad. Codes are 300 301 302 303 304. I know what they mean. But whenever the weather is cooler it runs ALMOST perfect. High idle on startup. Any thoughts...

Yes that was only code. And this only happened twice. (The rough engine). Shut it off, start it back up, it runs perfectly. Guess it's down to the mechanic with good diagnostic equipt.

I'm back. Sorry took so long, been on the road. Ran the key sequence came up P0300. Renegade 04 it's got 187 miles Talked to the people we bough t it from, people I know, they have done regular services. Never any ****** problms.. Fluid looks and smells fine not burnt.

Hey everyone. New here. Bought the wife a 03, been a GREAT driver, she loves it. BUT, twice now, and never with me in it, it starts running real rough where she turns around and comes home. When I get in it, it's running beautiful. Yesterday she calls me and says it won't shift. "5000rpm on...