Exhaust manifold question
A while ago we had a big exhaust leak on my 2000 Flair, Workhorse 7.4L. We took it to the shop and they replaced both manifolds. 2 days after we got it back, we went on the road and after 20 minutes ...
Forum Discussion
udidwht wrote:
Sounds as if 1 or more spark plug wires may have burned. Check all your wires carefully. It helps to wrap them with high temp sheaths (8) from the end of the wire.
Also check each of your exhaust donuts where the exhaust manifold meets the pipes. The donuts can burn up and you'll get excessive noise combined with power loss.
Thanks, I’ll check the wires once more but they were replaced at the same time the manifolds were replaced the first time and they also added the temp sheaths.
I think there may be a problem with the combustion that makes the engine shake and loosens the manifold. The shop that installed them will take in the rig in 2 weeks to fix under warranty but seeing that it’s the 2nd time it happens i’d like to find the root cause so there is nit a third.
I will consider all the tips and advice everyone has given me and hopefully it’ll be corrected for good.
