i need some help bad!!!!!!!!!!

[robert2006]

Ok I have a 1984 pontiac firebird with a 2.8 v6 I took it to the shop and they said one of the cilinders had lower comp then the rest and fuel leaks into the cilinder so I have to change the spark in that cilinder every so offten but now the car after it runs for a while will idle so low and cut off and it does not happen all the time but when it happens a lot it is hard to drive it is also a stick shift I have changed the fuel pump wires plugs distrabautar cap and I am still having this problem any one know what I should do I am gonna pull my hair out

[Fbomb]

Sounds like a valve leak.

[93formulalt1]

Ok I have a 1984 pontiac firebird with a 2.8 v6 I took it to the shop and they said one of the cilinders had lower comp then the rest and fuel leaks into the cilinder so I have to change the spark in that cilinder every so offten but now the car after it runs for a while will idle so low and cut off and it does not happen all the time but when it happens a lot it is hard to drive it is also a stick shift I have changed the fuel pump wires plugs distrabautar cap and I am still having this problem any one know what I should do I am gonna pull my hair out

Well, if you are having a low compression problem, changing fuel pumps, distributors, etc., isn't going to fix the root problem. You probably have a bad seal or gasket somewhere. Do you see any blue smoke out of the exhaust on cold startup? Could be a fried piston ring, but I would look into the cheaper possibilities first. Any idea which cylinder has the low compression problem? I personally think it's a valvetrain problem, that's what I would look into first, but we need a better description of the symptoms. Any strange smells? Is there any cross-contamination in your fluids?

[robert2006]

There are no funny smells I already know there is a leaky value but it shuts off some times mostly at idle at a stoplight or crusing in nutral it leaks oil but I always check the oil there seems to be no contaminations

[93formulalt1]

Is the leaking valve on the same cylinder that has the low compression issue? If the valves aren't sealing properly, they will cause the cylinder to lose compression.

[1BADAIR]

too much fuel will wash the cylinder and cause low compression

[Phantom409]

Sounds like you need a valve job and maybe more

[prorac1]

Sounds like Roberto needs to find a good mechanic. Cause I think hes in over his head on this one. Good luck, Eric L

[97z2801ss]

well now u have an excuse for a 350 swap

[Gottork]

and if you just swap engines find a 3.4 out of a 94 Fbody, there is a HUGE diff in power, I found that out when I did a 2.8 to a 3.4 swap in a 4x4 s 10 blazer good luck with either way..