Misfire after build.

[harner]

I'm getting very aggravated with this car. Every time I fix or replace something. Another piece goes bad. Wtf?!


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We have similar luck, Nick! Good luck with it.

 

[BillBoost37]

This is known as modding a 3800. It's kinda odd..when Max's motor went he didn't seem upset. When one O2 sensor was not functioning, he nearly flipped out.

 

[JerzNick]

It got much worse and much louder. I don't think it's the flex plate either


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[Utter99]

Hey we can be blown motor buds.

Lets line them up and race em till they blow . Whoever gets the farthest wins . haha

But really sorry to hear that man 600 bucks will buy you a nice long block you just have to search . Found one for two hundred at one point.

 

[JerzNick]

Hey we can be blown motor buds.

Lets line them up and race em till they blow . Whoever gets the farthest wins . haha

But really sorry to hear that man 600 bucks will buy you a nice long block you just have to search . Found one for two hundred at one point.

Haha. You would win cause mine has a flat tire and won't roll. Well, looks like motor #3 will be ordered. #moneyPit


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[JerzNick]

Yes...you are. Otherwise it'll often log a multiple misfire and run like crap.

Nick.. look at the how to setup an HPT file in the tuning section stickies and fix that stuff as well.

Bill, could driving around with the misfire for 50 miles or so cause a main bearing to spin? I'm scratching my head to figure out how the second build went south...


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[Fivefingerdeathpunch]

If it let enough fuel into the crankcase that could have caused it.

 

[JerzNick]

Good point. But you don't think the detonation put too much pressure on the bearings?


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[BillBoost37]

I wouldn't think so from what I've seen, it shouldn't.

 

[blueguy]

To 88 formula: Unless you plan on intercooling and not keeping a correct PCV setup, then ditch the breather on the rear VC...nice vacuum leak you'll have there.