Thread: Car is missing badly

I'm rather new to the scene but I have a 04 gtp and its missing really bad on 1 and 3 and its leaking antifreeze a little bit and the car wont heat up anybody have problems like this on theres?

I made sure to check the oil its fine, My mechanic said it was throwing a thermostat code so I'm going to change that, and spark plugs it has a slight LIM leak but he said he wouldn't worry about it but I will probably change that also.

Originally Posted by gtpzmdc

I made sure to check the oil its fine, My mechanic said it was throwing a thermostat code so I'm going to change that, and spark plugs it has a slight LIM leak but he said he wouldn't worry about it but I will probably change that also.

He wouldn't worry about a leaking LIM gasket?? I guess he'll worry about it when it spins a bearing and destroys that motor, lol... Yes, go ahead and replace the LIM gaskets with the new updated ALUMINUM ones from GM. And do the plug wires as well because 99% of the time when you remove one of the back ones it rips from the boot and makes it useless. Just have a new set onhand and you'll be good to go.

How hard it it to do the gaskets yourself I don't have much money can't afford to pay labor right now so if I wanted to do it myself what is the difficulty level? and now my service traction light is on

Hmm lol Is there a forum that tells you step by step on how to do it and I would rather pay that then that plus labor.

Originally Posted by aussie

Its really easy, I did mine in about 3 hours with just a socket set, a few wrenches, razor blade for scraping the old gaskets off...

The gaskets will cost you though.... I think about 45 for the UIM gasket, and depending on which option you choose - 20 to 75 for the LIM gasket...

What "option" are you referring to on the LIM gaskets? There is only one option that I'm aware of- the aluminum ones. Don't install the same plastic junk that came in the car or you will be doing this all over again. And since he has a GTP he won't need the same UIM gasket as the N/A cars, so the price there may be lower.

And the "service traction" light may just be a bad wheel speed sensor. Try cleaning the harness at each wheel where they connect and see if it clears.

You will also need a torque wrench for the bolts, and some sealer for the LIM bolts to keep the coolant from wicking up the threads.

Thanks guys I'm gonna try tearing into it this coming week as far as the traction control I shut the car off and it cleared no more problems with that I will for be getting the aluminum gaskets because I don't wanna be going through this again. Thanks for you help any more help would be great still looking for a good step by step instructions do you guys recommend changing the thermostat too I'm probably going to anyway because Its not heating up correctly anyway just wondering.