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Old 05-04-2008, 07:41 PM   #1
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4.0 head swap problems? Need help

I have a 87 wrangler it has the 4.2 motor and i just did the 4.0 head swap on it it came out realy good but i have some small problems that i was hopeing you guys would help me with

1. i can't figure out how to rewire the temp sensor the new head the new head has a 4 wire sensor and the old sensor is just on wire and it wont fit in the hole where the new sensor is

is their a way i can rewire it?


2 my oil presher reads a little over half way but it just stays their when i turn on the car i know for a fact it should move when i give it more throttle

can any one tell me how to fix this


3 my tail lights only go on when my car is in the start possition on the key cylinder but when the motor is running they don't work



any help on any of those topics will be a great help because i can't figure it out

thnx guys

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Old 05-19-2008, 09:51 PM   #2
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I'm affraid I cant help any on your issue but I am getting ready to yank the 4.2 for a re-build, did you have any other issue's with the head swap other than your mentioned sensor? Thanks!
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