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Old Jul 2, 2020 | 09:42 PM
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Can a failing Temperature Sensor or Air Temperature Intake Sensor cause an increase of engine RPM? There are no other issues - engine temperature - normal, starts - fine, runs great.
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Old Jul 3, 2020 | 04:06 PM
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I don't think so or how it would... IS your rpm issue just at idle ??? Auto Trans or Manual ??? When exactly are
you seeing an increase of RPMS
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Old Jul 3, 2020 | 06:36 PM
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Yes just at idle - automatic - I just did a “Idle Relearn Procedure” today and I think it may be fixed - thanks.
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Old Jul 3, 2020 | 09:02 PM
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Ok.. Sounds good.. Old fashioned vacuum leak, dirty throttle body, normal maint stuff could cause an erratic idle.
If you are early 2003 or older, you also have a replaceable fuel filter - it is also the fuel pressure regulator as well, so it's important
to service regularly. MAF sensor could be dirty too... Just trying to go thru what would cause this
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Old Jul 5, 2020 | 08:58 PM
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Originally Posted by BLUDICE
Can a failing Temperature Sensor or Air Temperature Intake Sensor cause an increase of engine RPM? There are no other issues - engine temperature - normal, starts - fine, runs great.
Glad you fixed your issue but yes it can. I broke off my Coolant Temp Sensor on the left side head when doing a header install at my brothers house and figured I could just drive it back home. Albeit my issue was infrequent but it caused the car to accelerate on it's own and rev with the clutch in. After I replaced that sensor it never did it again. Scary drive home.
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