Head gaskets?

**gofast** · 03-31-2016

Has anyone ever seen a head gasket blow just between #2 & #4 cylinder causing low compression? Runs great when cold and misses on #2 & #4 when warmed up and at at least 3psi or more of boost. No oil in water or water in oil. Motor is smooth and strong for everything when it's not boosting. Thank you

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**indygrandprix** · 03-31-2016

It's pretty rare for the head gaskets to go on these. Have you checked the compression?

**gofast** · 03-31-2016

The dealership did the compression test and said it was low on #2 & #4. The head gaskets were replaced less than a yr ago by the previous owner.

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**Scottydoggs** · 03-31-2016

could be two bad plug wires, melted on the manifold.

**gofast** · 03-31-2016

I wish that's all it was. Lol.

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**Scottydoggs** · 03-31-2016

ppl have cracked plugs installing them too. or used plats and got misfires as well.

**gofast** · 03-31-2016

But that wouldn't cause low compression on those 2 cylinders.

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**Scottydoggs** · 03-31-2016

burnt valves if both are low on compression, and your not loosing coolant at all.

**gofast** · 03-31-2016

I thought that too but maybe being 2 cylinders next to each other might be a gasket issue?

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**gofast** · 03-31-2016

If it were burnt valves wouldn't it still misfire when the motor is cold? It runs good even at WOT at full boost when the motor is cold. I knkw that's not the way to treat a cold motor bit I tried it today and it worked great when cold.

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