I have a 94 Dodge Ram when the engine is cold and I come to a stop rpms drop down to almost zero before coming back up to proper running idle unless I change gears to neut at first when engine is cold

20

Asked by Jul 25, 2014 at 08:02 PM about the 1994 Dodge Ram 1500 2 Dr LT 4WD Standard Cab LB

Question type: Maintenance & Repair

11 Answers

60,275

May be check your vacume hose,s.

1 out of 1 people think this is helpful.
20

but it only happens Wen engine is cold?

1 out of 1 people think this is helpful.
20

when engine cold and I come to a stop in drive it drops down to 0 RP M's and then shoots back up by itself unless I put it in neutral or 2nd gear then it is fine. When engine is warm after a few minutes everything is OK

104,385

Sounds like possibly dirty/faulty idle air control valve or dirty throttle plate.

1 out of 1 people think this is helpful.
20

brand new idle air control valve brand new throttle position sensor and mass air flow is good as well

1 out of 1 people think this is helpful.
104,385

Name brand idle air control valve or one of the cheap on line ones? Went thru three cheap ones(two did not work right out of the box, one lasted a month) before I finally broke down and paid top dollar for a good one at a local auto parts store. Fixed the issue. Have you visually watched yours work?

2 out of 2 people think this is helpful.
146,545

http://ramchargercentral.com/vehicle-help/1994-dodge-ram-check-engine-codes/ and--- http://dodgeforum.com/forum/general-tech/8717-service-engine-codes-for-obd-engines.html ....you can get a diagnostic from CEL flashes, since your 1994 does not have OBDII that you can use a scanner

1 out of 1 people think this is helpful.
146,545

http://dodgeram.info/Engine-Gas/OBDI/pcm_fault_code.htm ...is another, a real good site to help you

1 out of 1 people think this is helpful.
20

yes I bought idle air control valve from auto parts store new still didn't work did the key code and got error code 37

20

torque converter solenoid?

20

Thinking low fuel pressure

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