High Idle Speed

Tiny
SGTKEVINBROWN
  • MEMBER
  • 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 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 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
  • MECHANIC
  • 1,158 POSTS
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
  • MECHANIC
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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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