HIGH IDLE SPEED

  • Tiny
  • SGTKevinBrown
  • Saturn

2000
Saturn
SL2
1.9 L4
5 speed manual

-At first start up Idle is above 2500 for over 5 mins.
-If you are sitting on a hill and just allow it to roll rpm go from 900 to 1700
-when shifting rpm don't drop unless you wait for aprox 15 seconds then drop to 1500 to 1700 only
-engin speed does not go below 1500 unless car is stoped for a 30 seconds to 1 min.
-checked codes and found none
-have auto xray diagnistic tool and viewed real time data and found no problems with TPS
-can not find a price for fuel pressure regulator anywhere does it have one?
-thinking Idle Air Control Valve
am I right?
this is a repair I am doing for a church at no cost need to try to spend as little as possable can you help?

Thursday, January 25th, 2007 AT 3:58 PM

3 Answers

  • Tiny
  • Service Writer
  • Expert
  • 9,255 posts

IAC I very possible. EGRs are a sore spot with these cars too. Clean em both.

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Thursday, January 25th, 2007 AT 6:03 PM
  • Tiny
  • peppermrj
  • Member

Coolant temp sensors are known problems and will cause high idles/ Easy and cheap fix. Get the updated brass tip design from saturn. Also check the wiring plug for corrosion. Clean or replace it also.

Good luck and let us know. : )

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Wednesday, February 7th, 2007 AT 7:03 PM
  • Tiny
  • Service Writer
  • Expert
  • 9,255 posts

Geez.I should have known better.I'm with you on that Peppermrj!

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Wednesday, February 7th, 2007 AT 8:07 PM

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