throttle hesitation/Bucking
11-23-2013, 08:36 PM
#1
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Year: 1997
Model: Cherokee
Engine: 4.0 I6
throttle hesitation/Bucking
Yes, another throttle hesitation/bucking problem. 
Specs: 97 XJ I6. I am experiencing throttle hesitation when applying throttle. No CEL. This only happens about once in every 15ish starts. When I experience this problem the coolant temp gauge does not work. I only have the problem when the gauge does not work. While driving when the issue is occurring sometimes the gauge will come back to life then i have no throttle hesitation issues.
Is this condition caused by the temp not being corectly inputted to the computer?? IDK
What to check?
I have done plenty of reading on possible issues for a problem like this but i dont recall the temp gauge being involved.
Thanks for any help you can provide.
Specs: 97 XJ I6. I am experiencing throttle hesitation when applying throttle. No CEL. This only happens about once in every 15ish starts. When I experience this problem the coolant temp gauge does not work. I only have the problem when the gauge does not work. While driving when the issue is occurring sometimes the gauge will come back to life then i have no throttle hesitation issues.
Is this condition caused by the temp not being corectly inputted to the computer?? IDK
What to check?
I have done plenty of reading on possible issues for a problem like this but i dont recall the temp gauge being involved.
Thanks for any help you can provide.
11-23-2013, 09:16 PM
#2
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Year: 1996
Model: Cherokee
Engine: 4.0L
Yes, another throttle hesitation/bucking problem. Specs: 97 XJ I6. I am experiencing throttle hesitation when applying throttle. No CEL. This only happens about once in every 15ish starts. When I experience this problem the coolant temp gauge does not work. I only have the problem when the gauge does not work. While driving when the issue is occurring sometimes the gauge will come back to life then i have no throttle hesitation issues. Is this condition caused by the temp not being corectly inputted to the computer?? IDK What to check? I have done plenty of reading on possible issues for a problem like this but i dont recall the temp gauge being involved. Thanks for any help you can provide.
Specs: 97 XJ I6. I am experiencing throttle hesitation when applying throttle. No CEL. This only happens about once in every 15ish starts. When I experience this problem the coolant temp gauge does not work. I only have the problem when the gauge does not work. While driving when the issue is occurring sometimes the gauge will come back to life then i have no throttle hesitation issues. Is this condition caused by the temp not being corectly inputted to the computer?? IDK What to check? I have done plenty of reading on possible issues for a problem like this but i dont recall the temp gauge being involved. Thanks for any help you can provide.Last edited by cranesrule; 11-23-2013 at 09:21 PM.
11-23-2013, 09:22 PM
#3
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Year: 1997
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11-23-2013, 09:26 PM
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11-23-2013, 09:26 PM
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Usually, because a faulty ECT will show a colder than normal temperature which causes the computer to adjust for the false temperature causing a poorly running, if a running engine at all.
11-23-2013, 09:33 PM
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11-24-2013, 07:38 AM
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The '97 has only one ECT sensor and its mounted on the thermostat housing.
It provides the PCM with coolant temp data for coolant gauge readout and PCM engine fuel control management.
Before replacing the ECT, inspect the connector for being loose, having corrosion on the connector pin cavitities, and chafed wires.
It provides the PCM with coolant temp data for coolant gauge readout and PCM engine fuel control management.
Before replacing the ECT, inspect the connector for being loose, having corrosion on the connector pin cavitities, and chafed wires.
11-24-2013, 09:55 AM
#9
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Year: 1997
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Thanks for the help guys. I will check it for good connection first, and move on to replacement I that does not work. Thanks again
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