Its probably around $500 mostly because of the amount of labor that it takes to replace it. However if you just order the gasket from the auto parts store and replace it yourself it'll only cost you $20.
that can be any number of things. 1 check or replace the distributor. 2 check your head gasket. 3 if its back firing it doesnt always mean u jumped timing, your exhaust manifold gasket could be bad and you might be getting exhaust fumes in your intake manifold. note- intake manifold and exhaust manifold share 1 gasket
No. which manifold gasket are you wanting to replace? Intake or exhaust?
If the exhaust manifold gasket is leaking the only fix is to replace it with a new one.
unbolt the head pipe then the manifold.
Where is the leak coming from. Most likely you will need to replace the exhaust manifold gasket which will require removing the exhaust manifold.
The gasket is between the head and the manifold and simply remove the bolts and replace the gasket after cleaning it real good.
In most cases a new gasket is required, but no sealant.
if it is just a blown exhaust manifold gasket it can ruin your valves, so replace it correctly and make sure everything is clean before putting on the new gasket
The exhaust manifold needs to have a gasket in place to help seal the juncture between the manifold and the engine. After the gasket and gasket sealer are in place, tighten the bolts for the exhaust manifold. The exhaust pipe can then be replaced on the new exhaust manifold.
You will need to remove the exhaust manifold retaining bolts in your 1993 Chevy Astro. Remove the exhaust manifold. Remove the exhaust manifold gasket and clean the surface. Reverse the process to install the new exhaust manifold gasket.
sell your van the studs for the maniflold are going to break and you most likely will have to replace head Between the exhaust manifold and the head is the manifold gasket. Where the exhaust pipe connects to the exhaust manifold is a manifold doughnut gasket.
get a chilton repair manual and it will tell you how.