96 Saturn s1 - idle problems - Engine Troubleshooting


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96 Saturn s1 - idle problems

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Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

juniorinky
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Mar 28, 2013, 12:14 AM

Post #1 of 4 (1556 views)

96 Saturn s1 - idle problems	Sign In

I am working on a 96 Saturn s1. whenever I shift gears the idle won't drop. it will eventually drop but I will already be in the next gear. I took the throttle body off and cleaned it up really good. it was really nasty. there are no vacuum leaks it idles perfect at 750 rpm. no hesitation and no miss. I am at a loss. I am thinking either the throttle positioning sensor or the maf sensor. but I don't want to buy parts just to throw on it. any help will be greatly appreciated.f

(This post was edited by carjunky on Apr 4, 2013, 5:36 PM)

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 28, 2013, 3:16 AM

Post #2 of 4 (1526 views)

Re: idle problems	Sign In

That's why you need an good scan tool to monitor all the sensor data so you can look for things like that.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Discretesignals
Ultimate Carjunky / Moderator
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Mar 28, 2013, 5:33 PM

Post #3 of 4 (1494 views)

Re: idle problems	Sign In

Check the coolant temperature sensor. See if it is cracked.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

juniorinky
User

Mar 28, 2013, 6:53 PM

Post #4 of 4 (1486 views)

Re: idle problems	Sign In

Thanks.That is what it was.I noticed that it was running a little cooler than normal. but I never thought about the coolant sensor I replaced it and everything is fine now thanks. the temperature gauge showed a little cooler than normal but I thought that was just maybe the way they ran.My truck gauge shows right in the middle and this runs about quarter of the guage.Installed a thermostat and it reads in the middle of the guage.Really dont know if it was the thermostat being stuck open or the sensor though but replaced both.

(This post was edited by juniorinky on Mar 29, 2013, 6:17 PM)

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