Just got car now knocking

**Warriorpluto** · 02-20-2017

Originally Posted by GTPpower

No way that will be enough.

What do you suggest?

**stocker** · 02-21-2017

Originally Posted by GTPpower

There is a gasket between the rear manifold and the downpipe. It's a metal crush bent gasket. You can use copper rtv instead if you want. The gasket is a one time use only.

So I disconnected my downpipe during a rack replacement and reinstalled the gasket not knowing it was a 1 time use. I suspect a slight exhaust leak now and it sounds like that would be expected based on what you know?

Thanks for clarity on my suspicion!

**Fivefingerdeathpunch** · 02-21-2017

I've re-used that gasket several times before, haven't had a leak there.

Maybe I'm just lucky and never damaged it.

**GTPpower** · 02-21-2017

That's a crush bent gasket. One time use only, or it won't seal. Similar to the way a compression fitting works under your sink. If you reused it without a leak, you either have the felpro replacement, or you are stupid lucky.

**Fivefingerdeathpunch** · 02-21-2017

I think I've had the downpipe out of my sisters car like 3 times already and everytime I just impact the bolts back on and send it. No leaks FTW.

**Warriorpluto** · 04-14-2017

New problem guys.

http://www.grandprixforums.net/threa...tp-won-t-start

**Warriorpluto** · 04-23-2017

Just to make sure do I drop timing only at wot or all across the board?

**Warriorpluto** · 04-23-2017

What I did right now with hptuners is drop timing by seven degrees from 5000 Rpm and up

**Warriorpluto** · 04-23-2017

Also would bad ground or bad battery cable make theft light come on

**Scottydoggs** · 04-23-2017

why so much timing removed? seems like a lot to pull. set to 13-14 of your knocking like mad or something. -7 is like 8º, thats weak for sure.

**Warriorpluto** · 04-23-2017

Oh ok I just wanted to make sure but I just cranked it up again and it's rattling or something. I might just run it back through the auction and get what I can out of it

**Scottydoggs** · 04-23-2017

take the sc belt off and see if the pulley has slop in it, turn the pulley back and fourth, snap it back, if it clicks its just a bad coupler. they tend to make a racket at idle when bad. like rocks in the sc horrid sound.

**Warriorpluto** · 04-23-2017

Where are all the grounds? I ha e a connections issue. With key on the check engine light flickers and the power train relay clicks really fast. Is the fuse box going out

**Scottydoggs** · 04-23-2017

tranny bolt has a stud on it, follow the neg cable if you dont see it right away. its under the cross over pipe somewhat. theres smaller grounds there as well, the wires tend to break off the eyelets sometimes, theres also a ground off the battery to the fender on the 04 up cars iirc.