87 Jeep Comanche 4x4 light on - JeepForum.com

 
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post #1 of 6 Old 03-28-2012, 09:13 PM Thread Starter
birdie5
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1987 MJ Comanche 
 
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87 Jeep Comanche 4x4 light on

Hi guys, I just bought this jeep and drove it home today. All the way home the 4x4 light was on - it was not in 4 wheel drive though. Is there something I need to check/do to fix this? Also, any hints/tips about this truck would be great, first jeep and I am getting ready to take it on a five hour trip Thanks!!

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post #2 of 6 Old 03-28-2012, 10:19 PM
Madeoflite
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Check your vacuum line connections!! I'd bet 1 came loose
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post #3 of 6 Old 03-29-2012, 07:02 AM
cruiser54
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1990 MJ Comanche 
 
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The vacuum actuated electrical switch for the light is located under the coolant bottle. Odd blue color with a vac line and wire on it.

That vacuum system sucked when new and I'm sure the hoses are shot now. Here's what I suggest to get any future problems off the radar screen.

http://www.cherokeeforum.com/f51/fre...ss-91-a-38629/
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post #4 of 6 Old 03-29-2012, 08:06 AM Thread Starter
birdie5
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Thanks guys! It is OK to drive it before I fix this or do I need to fix it right away?
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post #5 of 6 Old 03-29-2012, 08:42 AM
cruiser54
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Hard to say. The fix described in the link above takes 1/2 hour.
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post #6 of 6 Old 03-29-2012, 11:50 AM Thread Starter
birdie5
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Thanks. It's at the mechanics now I will have them check it.
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