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You can change a head gasket if that is all that is wrong.
The engine is a V-6 3.0 liter 3VZE-F engine... It has aluminum heads... there is a recall on the head gasket for this model... they are VERY tricky... The recall can be taken in anytime for a new one... I own a 1991 Toyota pickup dxl 4wd. the head gasket has already been done once... now it has blown on me again!!! I was quoted $1800.00 from the dealership if there is no head/block damage.
this is for vectra's
The 4.3 liter Chevy Astro head gasket torque specification is 160 pounds. The head gasket bolts should be torqued in 40 pound intervals.
A common cause of problems in cylinder head gaskets is leaks in the gasket. When a leak forms, the gasket must be replaced.
The head will have to be pulled and the gasket replaced. If the car overheated the head may have warped and will need to be resurfaced or replaced as well.
What is it doing? Your question is too vague
Replacing a head gasket on a 1.5 liter Honda Civic requires removal of many of the engines components such as the intake manifold, valve cover, and timing belt. After removing the head from the engine it needs to be resurfaced. Replace the old head gasket and machined head onto the block and reinstall all the other components.
Bad cylinder head gasket or valves.
that is a bad head gasket or blown head gasket the engine needs to be repair
Generally, engine problems such as a blown head gasket or warped head.