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Re: Jeep Wrangler High Idle Problem
97tjMike wrote:
> Hello Everyone: > > I have a 97 TJ and 95% of the time it idles perfectly. However, about > 5% of the time, usually when the vehicle has been run for more than 20 > minutes or so, the idle in neutral or park will shoot up to between > 1200 and 1500 RPM. The only way to get it to stop is to put the > vehicle into gear or to restart the car. If I restart it, it will not > happen for a while, but it eventually comes back. The TPS was recently > replaced, and I just replaced the idle air control valve, thinking > this may have been the problem, but it still has the same effect. I'm > thinking now that it may be the coolant temperature sensor (something > wacky when the engine is hotter making the vehicle run at higher > speeds??). Any suggestions? I'm hoping its not my computer... Clean the TPS connector. Go to an electronics parts store and buy some contact cleaner or WD40 works. Disconnect the TPS, clean, connect and disconnect several times, blow dry, then use some dielectric grease on the the connector seal ring to keep moisture out. -- Will Honea |
Re: Jeep Wrangler High Idle Problem
97tjMike wrote:
> Hello Everyone: > > I have a 97 TJ and 95% of the time it idles perfectly. However, about > 5% of the time, usually when the vehicle has been run for more than 20 > minutes or so, the idle in neutral or park will shoot up to between > 1200 and 1500 RPM. The only way to get it to stop is to put the > vehicle into gear or to restart the car. If I restart it, it will not > happen for a while, but it eventually comes back. The TPS was recently > replaced, and I just replaced the idle air control valve, thinking > this may have been the problem, but it still has the same effect. I'm > thinking now that it may be the coolant temperature sensor (something > wacky when the engine is hotter making the vehicle run at higher > speeds??). Any suggestions? I'm hoping its not my computer... Clean the TPS connector. Go to an electronics parts store and buy some contact cleaner or WD40 works. Disconnect the TPS, clean, connect and disconnect several times, blow dry, then use some dielectric grease on the the connector seal ring to keep moisture out. -- Will Honea |
Re: Jeep Wrangler High Idle Problem
97tjMike wrote:
> Hello Everyone: > > I have a 97 TJ and 95% of the time it idles perfectly. However, about > 5% of the time, usually when the vehicle has been run for more than 20 > minutes or so, the idle in neutral or park will shoot up to between > 1200 and 1500 RPM. The only way to get it to stop is to put the > vehicle into gear or to restart the car. If I restart it, it will not > happen for a while, but it eventually comes back. The TPS was recently > replaced, and I just replaced the idle air control valve, thinking > this may have been the problem, but it still has the same effect. I'm > thinking now that it may be the coolant temperature sensor (something > wacky when the engine is hotter making the vehicle run at higher > speeds??). Any suggestions? I'm hoping its not my computer... Clean the TPS connector. Go to an electronics parts store and buy some contact cleaner or WD40 works. Disconnect the TPS, clean, connect and disconnect several times, blow dry, then use some dielectric grease on the the connector seal ring to keep moisture out. -- Will Honea |
Re: Jeep Wrangler High Idle Problem
Will Honea wrote:
> 97tjMike wrote: > >> Hello Everyone: >> >> I have a 97 TJ and 95% of the time it idles perfectly. However, about >> 5% of the time, usually when the vehicle has been run for more than 20 >> minutes or so, the idle in neutral or park will shoot up to between >> 1200 and 1500 RPM. The only way to get it to stop is to put the >> vehicle into gear or to restart the car. If I restart it, it will not >> happen for a while, but it eventually comes back. The TPS was recently >> replaced, and I just replaced the idle air control valve, thinking >> this may have been the problem, but it still has the same effect. I'm >> thinking now that it may be the coolant temperature sensor (something >> wacky when the engine is hotter making the vehicle run at higher >> speeds??). Any suggestions? I'm hoping its not my computer... > > Clean the TPS connector. Go to an electronics parts store and buy some > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > disconnect several times, blow dry, then use some dielectric grease on the > the connector seal ring to keep moisture out. > Yup, replacing parts only cleans 'half' the connection. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: Jeep Wrangler High Idle Problem
Will Honea wrote:
> 97tjMike wrote: > >> Hello Everyone: >> >> I have a 97 TJ and 95% of the time it idles perfectly. However, about >> 5% of the time, usually when the vehicle has been run for more than 20 >> minutes or so, the idle in neutral or park will shoot up to between >> 1200 and 1500 RPM. The only way to get it to stop is to put the >> vehicle into gear or to restart the car. If I restart it, it will not >> happen for a while, but it eventually comes back. The TPS was recently >> replaced, and I just replaced the idle air control valve, thinking >> this may have been the problem, but it still has the same effect. I'm >> thinking now that it may be the coolant temperature sensor (something >> wacky when the engine is hotter making the vehicle run at higher >> speeds??). Any suggestions? I'm hoping its not my computer... > > Clean the TPS connector. Go to an electronics parts store and buy some > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > disconnect several times, blow dry, then use some dielectric grease on the > the connector seal ring to keep moisture out. > Yup, replacing parts only cleans 'half' the connection. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: Jeep Wrangler High Idle Problem
Will Honea wrote:
> 97tjMike wrote: > >> Hello Everyone: >> >> I have a 97 TJ and 95% of the time it idles perfectly. However, about >> 5% of the time, usually when the vehicle has been run for more than 20 >> minutes or so, the idle in neutral or park will shoot up to between >> 1200 and 1500 RPM. The only way to get it to stop is to put the >> vehicle into gear or to restart the car. If I restart it, it will not >> happen for a while, but it eventually comes back. The TPS was recently >> replaced, and I just replaced the idle air control valve, thinking >> this may have been the problem, but it still has the same effect. I'm >> thinking now that it may be the coolant temperature sensor (something >> wacky when the engine is hotter making the vehicle run at higher >> speeds??). Any suggestions? I'm hoping its not my computer... > > Clean the TPS connector. Go to an electronics parts store and buy some > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > disconnect several times, blow dry, then use some dielectric grease on the > the connector seal ring to keep moisture out. > Yup, replacing parts only cleans 'half' the connection. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: Jeep Wrangler High Idle Problem
Will Honea wrote:
> 97tjMike wrote: > >> Hello Everyone: >> >> I have a 97 TJ and 95% of the time it idles perfectly. However, about >> 5% of the time, usually when the vehicle has been run for more than 20 >> minutes or so, the idle in neutral or park will shoot up to between >> 1200 and 1500 RPM. The only way to get it to stop is to put the >> vehicle into gear or to restart the car. If I restart it, it will not >> happen for a while, but it eventually comes back. The TPS was recently >> replaced, and I just replaced the idle air control valve, thinking >> this may have been the problem, but it still has the same effect. I'm >> thinking now that it may be the coolant temperature sensor (something >> wacky when the engine is hotter making the vehicle run at higher >> speeds??). Any suggestions? I'm hoping its not my computer... > > Clean the TPS connector. Go to an electronics parts store and buy some > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > disconnect several times, blow dry, then use some dielectric grease on the > the connector seal ring to keep moisture out. > Yup, replacing parts only cleans 'half' the connection. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's - Gone to the rust pile... Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) |
Re: Jeep Wrangler High Idle Problem
How would the TPS affect idle speed? From my understanding, it is just
a sending unit, meaning it can only give information to the PCM but cannot receive and therefore manipulate any settings. On Aug 13, 1:47 pm, Mike Romain <roma...@sympatico.ca> wrote: > Will Honea wrote: > > 97tjMike wrote: > > >> Hello Everyone: > > >> I have a 97 TJ and 95% of the time it idles perfectly. However, about > >> 5% of the time, usually when the vehicle has been run for more than 20 > >> minutes or so, the idle in neutral or park will shoot up to between > >> 1200 and 1500 RPM. The only way to get it to stop is to put the > >> vehicle into gear or to restart the car. If I restart it, it will not > >> happen for a while, but it eventually comes back. The TPS was recently > >> replaced, and I just replaced the idle air control valve, thinking > >> this may have been the problem, but it still has the same effect. I'm > >> thinking now that it may be the coolant temperature sensor (something > >> wacky when the engine is hotter making the vehicle run at higher > >> speeds??). Any suggestions? I'm hoping its not my computer... > > > Clean the TPS connector. Go to an electronics parts store and buy some > > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > > disconnect several times, blow dry, then use some dielectric grease on the > > the connector seal ring to keep moisture out. > > Yup, replacing parts only cleans 'half' the connection. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: Jeep Wrangler High Idle Problem
How would the TPS affect idle speed? From my understanding, it is just
a sending unit, meaning it can only give information to the PCM but cannot receive and therefore manipulate any settings. On Aug 13, 1:47 pm, Mike Romain <roma...@sympatico.ca> wrote: > Will Honea wrote: > > 97tjMike wrote: > > >> Hello Everyone: > > >> I have a 97 TJ and 95% of the time it idles perfectly. However, about > >> 5% of the time, usually when the vehicle has been run for more than 20 > >> minutes or so, the idle in neutral or park will shoot up to between > >> 1200 and 1500 RPM. The only way to get it to stop is to put the > >> vehicle into gear or to restart the car. If I restart it, it will not > >> happen for a while, but it eventually comes back. The TPS was recently > >> replaced, and I just replaced the idle air control valve, thinking > >> this may have been the problem, but it still has the same effect. I'm > >> thinking now that it may be the coolant temperature sensor (something > >> wacky when the engine is hotter making the vehicle run at higher > >> speeds??). Any suggestions? I'm hoping its not my computer... > > > Clean the TPS connector. Go to an electronics parts store and buy some > > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > > disconnect several times, blow dry, then use some dielectric grease on the > > the connector seal ring to keep moisture out. > > Yup, replacing parts only cleans 'half' the connection. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590 > (More Off Road album links at bottom of the view page) |
Re: Jeep Wrangler High Idle Problem
How would the TPS affect idle speed? From my understanding, it is just
a sending unit, meaning it can only give information to the PCM but cannot receive and therefore manipulate any settings. On Aug 13, 1:47 pm, Mike Romain <roma...@sympatico.ca> wrote: > Will Honea wrote: > > 97tjMike wrote: > > >> Hello Everyone: > > >> I have a 97 TJ and 95% of the time it idles perfectly. However, about > >> 5% of the time, usually when the vehicle has been run for more than 20 > >> minutes or so, the idle in neutral or park will shoot up to between > >> 1200 and 1500 RPM. The only way to get it to stop is to put the > >> vehicle into gear or to restart the car. If I restart it, it will not > >> happen for a while, but it eventually comes back. The TPS was recently > >> replaced, and I just replaced the idle air control valve, thinking > >> this may have been the problem, but it still has the same effect. I'm > >> thinking now that it may be the coolant temperature sensor (something > >> wacky when the engine is hotter making the vehicle run at higher > >> speeds??). Any suggestions? I'm hoping its not my computer... > > > Clean the TPS connector. Go to an electronics parts store and buy some > > contact cleaner or WD40 works. Disconnect the TPS, clean, connect and > > disconnect several times, blow dry, then use some dielectric grease on the > > the connector seal ring to keep moisture out. > > Yup, replacing parts only cleans 'half' the connection. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's - Gone to the rust pile... > Canadian Off Road Trips Photos: Non members can still view! > Jan/06http://www.imagestation.com/album/pictures.html?id=2115147590 > (More Off Road album links at bottom of the view page) |
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