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  1. M

    Engine change question, 91EX

    91 EX, motor shot, installing 93, 4.0. I put the 91 engine wire harness on the 93 motor, am I going to have surprises after installing it? I may have to change throttle body because the 93 has a vac port that the 91 is minus. Other than that its all 93 motor, and sensors. Thanks in advance.
  2. M

    What replacement engine is near bolt in?

    I have a 91 EX, the engine is toast, with 233+k miles. I want to drive it some more. What wrecks would be a bolt in 4.0. Changing intake etc. is'nt bad but I hear there are crank, cam sensor differances in push rod 4.0's. I have access to some wrecks and have time till it warms up. Thanx in...
  3. M

    water in exhaust

    Hi folks, New to this forum and my 91 Exployer, 4.0. My winter project has water out the exhaust. None in combustion chamber or oil. Compresion is 140 to 155. 130k on engine. I'm thinking a cracked head. Anybody thinking somthing better? Thanks in advance.
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