2002 Dodge Dakota Idle RPM Drop

DODGE DAKOTA
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MODOCDAVE
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  • 2 POSTS
Hi
I have a 2002 Dodge Dakota 4.7 V-8 auto tranny. After engine warms up ,when I stop at a light, engine drops from 700 to 500 rpms. I shift into neutral, then back into drive rpms go back to 700. I've check for a vacuume leak & pvc valve. Thanks
Feb 27, 2006 at 5:47 AM
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PEPPERMRJ
  • ✓Experienced Mechanic
  • 1,158 POSTS
Does it cause any other driveability problems? Very small drop, almost like an accessory ( AC, alt, etc)turning on. Might try cleaning the idle air control valve and the throttle body.

Good luck and let us know. :)
Mar 3, 2006 at 10:00 AM
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MODOCDAVE
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[quote:98ea7d1484="peppermrj"]Does it cause any other driveability problems? Very small drop, almost like an accessory ( AC, alt, etc)turning on. Might try cleaning the idle air control valve and the throttle body.

Good luck and let us know. :)[/quote:98ea7d1484]

Eveything is off. as stated when I shift to park then back to drive it goes back to 700 RPM. Will Try cleaning idle air and throttle body. thanks for input. Modocdave !
Mar 5, 2006 at 8:50 AM

Suggested Repair

Clean the idle air control valve and the throttle body, and confirm no accessory load is causing the small warm idle drop.

Conversation Summary

A 2002 Dodge Dakota 4.7 V-8 with an automatic transmission drops from about 700 to 500 RPM at a stop after warming up. Shifting to neutral or park and back to drive restores 700 RPM. The owner found no vacuum leak and checked the PCV valve. The expert noted the small drop could resemble an accessory load and suggested cleaning the idle air control valve and throttle body. The owner said accessories were off and planned to try that cleaning.

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