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Owns A Torsen
Joined: Mon Sep 18th, 2017
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JAMMAN wrote:
I put the original coil pack back on the 3.0 so I could use the brand new 4.0 coil pack I had on the 3.0... on the 4.0. Then I replaced #4 spark plug wire and put a clean plug in there again.
Last ditch effort to disprove the fact that the head gasket is blown between #4 cylinder and one of the water jackets.
If it starts missing tomorrow on the way to work the nightmare starts.
Could be the head or head gasket. However, it might be something simpler. The gaskets between the heads and the lower intake are notorious leakers on the 4.0 OHV engines. This allows coolant to be sucked into the runner under manifold vacuum and this can cause misfire. Guess which cylinder is usually affected first .... #4.
Interesting. Did I mention that #4 has a little more compression than #5? It's coming apart, thank you. It should be obvious if that was the issue when I take it off?
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00 XLT 4WD RCSB 3.GO! Jalapeño
01 XLT 2WD RC Steppie 3.0 auto Silver
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