1998 Isuzu Rodeo Question VERY High RPM in Idle Position

1998 ISUZU RODEO
17,000 MILES • 4 CYL • 2WD • MANUAL
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VAFLORIDAGIRL
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  • 1 POST
Hello,

We have a 1998 Iszuzu Rodeo 4 cylinder 2.2 litre engine that just had the head gasket replaced. After replacement, when you start the engine the RPM guage goes to over 6000 in the idle position. Obviously, the vehicle cannot even be left running like this and we are hoping that you might be able to help us out with what we can check to fix this problem. EGR, ECM fuse, throttle position, PCV??
Jul 30, 2010 at 10:39 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Sounds like the idle air control valve needs cleaning and also test the throttle position sensor/inspect cable and linkage/throttle plate
Jul 31, 2010 at 2:42 AM
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