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Unread 09-21-2012, 10:18 AM   #1
autopc25
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what are common symptoms of bad a MAP sensor?

How common is it for them to go bad?

What are common symptoms of a bad MAP sensor?

Is the MAP sensor something that degrades over time?

Is aftermarket a OK replacement for a MAP sensor or Mopar only?

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Unread 09-21-2012, 11:15 AM   #2
TheBoogieman
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Symptoms for a bad MAP Sensor would be comparable to an old vacuum advance on a distributor. The timing retards because the ECM thinks demand is low (typical failure is low).I've never had one go bad on any of my Jeeps. Aftermarket one is fine.

http://www.jeepforum.com/forum/f12/s...sensor-655191/
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Unread 09-21-2012, 11:44 AM   #3
autopc25
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Boogie, thanks for the quick reply!
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Unread 09-21-2012, 01:50 PM   #4
TheBoogieman
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Quote:
Originally Posted by autopc25 View Post
Boogie, thanks for the quick reply!
Glad to help.
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When I had 3.07s I would draft behind birds as an attempt to do the speed limit.
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Unread 11-22-2012, 07:29 PM   #5
scicero1
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MAP sensor

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Originally Posted by TheBoogieman View Post
Glad to help.
I hope I dont sound like a knob, but symptoms of a MAP sensor could be gas mileage, and other issues. I considered changing mine just to prevent issues. I got a good deal, I work at a store, sometimes its hit or miss, but something this important can help before the code sets off. I just dont kwno where it is
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Unread 11-23-2012, 03:34 AM   #6
Jonny Jeep
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A bad map sensor or even a small leak at the rubber tube underneath it can cause symptoms similar to a bad O2 sensor and may in some circumstances trip an O2 code. Rough running and gas mileage worsening are potential symptoms.
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