Head Gaskets changed now problems
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Head Gaskets changed now problems
Just changed the head gaskets on a 97 F-150 4.6 because of a problem with exhaust getting in the coolant. The truck ran fine before the head gasket change. Now after I put the new head gaskets in the trucks runs very rough. It is throwing no codes, and it seems to have good power, but runs rough the truck even shakes at an idle. It has all new plugs and I checked all of the wires. I checked the compression on all cylinders and it has good compression. I cannot find any vacuum leaks. I don't know what else could have happened when I changed the head gaskets. I thought about timing chain being off a tooth or something, but I would lose compression wouldn't I? Where else should I be looking?
Hotshot
Joined: Jul 2005
Posts: 11,931
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one tooth on the cam might do it... i doubt it would loose compression with that. there is some overlap on the valves so it would still build up compression... as i was reading the story, cam timing was my first guess.. since you just did the head, it is probalby related to tthat work?????
Postmaster
Joined: Oct 2006
Posts: 4,171
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From: SE Texas
one tooth on the cam might do it... i doubt it would loose compression with that. there is some overlap on the valves so it would still build up compression... as i was reading the story, cam timing was my first guess.. since you just did the head, it is probalby related to tthat work?????
JL
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Joined: Oct 2014
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From: Temecula
Did you check the injectors if it is fuel injected.
I just ran into this after chasing a problem for months I finally found the solution. Then this miss showed up. First time we had ever seen it. Well it turned out after the other problem was over we noticed the miss. It was the fuel injector.
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