sagerific95

so on my 96 gt, i just recently out some bolt ons;
bbk cai, 78mm t/b, sct xf3 tuner, bbk o/r x-pipe, magnapack exhaust.

i put all the bolt ons including the tuner before i put on the exhaust (everyone knows how hard those manifold nuts are to break loose).

ever since i put the xpipe in ive noticed white smoke... if i let the car idle, lets say at a red light, when i give it gas a poof of white smoke comes out the tips, this is when the car warms up, it only does this going from a stop.

i know a decent amount about engines. v8s mostly. so i know that white smoke usually means coolant in the cylinder. so i let my car idle and had my buddy chop the throttle and sure enough white smoke poofed out. BUT it did NOT smell sweet at all like coolant usually does when combusted. it just smells like exhaust. I checked the oil and no coolant is entering the oil system. my coolant level is fine also.

i now am getting a miss fire on #5, and i think the smoke and miss fire has to do with the intake manifold gasket. towards the back of the manifold ive noticed some coolant sitting there, not spurting or driping but there is coolant leaking. is thos the problem?

uberstang1

Its probablly fuel loading up in the misfired cylinder, don't forget u got rid of the cats so a little fuel smoke will show up easy if you have an afr issue.

sagerific95

That's what i figured.... there's no loss in power or anything. And i know the head gaskets are fine...... this is just confusing

JC316

Uber is correct. Excess fuel can cause the white smoke and it's even more noticeable without the cats.

sagerific95

Think the intake manifold gaskets have anything to do with the missfire? Everything ignition wise is brand new ...

96t-bird

i now am getting a miss fire on #5, and i think the smoke and miss fire has to do with the intake manifold gasket. towards the back of the manifold ive noticed some coolant sitting there, not spurting or driping but there is coolant leaking. is thos the problem?[/QUOTE]

Check your intake manifold. They are known to leak.

sagerific95

what would be the best way to test my manifold? soapy water in a spray bottle?

uberstang1

Fog vacum machine