Backfiring through intake, loud sucking sound from intake
front bumper when facing the front of the truck?
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
RS taggs. Put down the paint can and click on "new thread". You will be found by more people who might be able to help. And yea, probably a vacuum line. I've heard of blowing smoke in the lines to find where under the dash it's leaking. Also the "ball" down behind the left/front bumper might be cracked.
WHOOPS! Right front, (as if you were driving)
Thread Starter
CF Veteran
Joined: Sep 2009
Posts: 6,322
Likes: 6
From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
None so far, i think it was called the MAT as well! Maybe it'll fix the problem. Found the new sounds are coming from the Tranny!! Guess my search for a new tranny for my 4wd swap is moved into the express lane
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Resistance chart for both Coolant Temperature Sensor
-and-
Manifold Air Temperature
Coolant Temperature and Manifold Air Temperature Sensor Resistance Values
Approximate resistance your meter should show at the temperature shown in the chart.
NO resistance indicates a 'short' to ground - can be the sensor but will usually be a wire where the insulation has been abraded.
INFINITE resistance indicates an 'open / broken circuit. Can either be a broken wire or a bad sensor.
Degrees Fahrenheit Degrees Celcius Resistance in Ohms
-40....... -40....... 100,700
...0....... -18....... 25,000
...20....... -7....... 13,500
...40....... 4 ....... 7,500
...70....... 20....... 3,400
.100....... 38....... 1,600
160........ 70........ 450
212....... 100....... 185
-and-
Manifold Air Temperature
Coolant Temperature and Manifold Air Temperature Sensor Resistance Values
Approximate resistance your meter should show at the temperature shown in the chart.
NO resistance indicates a 'short' to ground - can be the sensor but will usually be a wire where the insulation has been abraded.
INFINITE resistance indicates an 'open / broken circuit. Can either be a broken wire or a bad sensor.
Degrees Fahrenheit Degrees Celcius Resistance in Ohms
-40....... -40....... 100,700
...0....... -18....... 25,000
...20....... -7....... 13,500
...40....... 4 ....... 7,500
...70....... 20....... 3,400
.100....... 38....... 1,600
160........ 70........ 450
212....... 100....... 185
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