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1987 Jeep Wrangler knock sensor & engine knock

Tiny
AJAX69
  • MEMBER
  • 1987 JEEP WRANGLER
Electrical problem
1987 Jeep Wrangler 6 cyl Four Wheel Drive Manual

my knock sensor is not hooked up and I dont know which color wire goes to it so I can hook it up.


and my engine makes a knocking sound when you rev it up. I think it might be the knock sensor, but on the other hand it could be a bad main bearing but that is where it gets tough because it is a brand new motor. So I have already over ruled that it is a rod.


so what do you think?
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Monday, October 27th, 2008 AT 8:16 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

If the knock is when you accelerate quickly and not so bad when light throttle is used I feel it will be the knock sensor, if this is not rectified you run the risk of burning a hole in a piston, so get your mechanic or auto lec to sort this out before you do some expensive damage.

Mark (mhpautos)
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Monday, October 27th, 2008 AT 8:22 PM

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