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1997 Lumina starts but has to revved until engine warms up. Idle is fine when the engine is up to operating temps.

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The idle air control (IAC) may be sticky or defective and cannot move to allow in extra air for a proper cold engine idle speed.

Posted on May 08, 2017

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1997 chey lumina runs fine until motor warm-up then shut off and won't start until motor cool off


Try getting your transmission solenoid replaced. After I got mine replaced it ran fine after that. That's the exact same thing my Lumina was doing.

Sep 12, 2012 | 1991 Chevrolet Lumina

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On cold start up engine revs up to 1500 rpm then down to 500rpm and keeps doing this until it warms up also sometime conks out when revving up and down


a number of possible solutions, including a vacuum leak (check hoses, use a spray throttle body cleaner o9n the intakie manifold looking for leaks), or the Idle air controller is dirty or defective, or the throttle position sensor is bad. Do you have a check engine light?

Aug 08, 2011 | 1997 Ford Escort

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I have a 92 yj 2.5l 5 speed. it has only after warming up a misfire/rough idle. its fine when its cold and once it warms up and idle comes down it misfires/idles really rough. may be lacking power also. i...


check that the EGR valve is not sticking or has a vacuum leak. This valve will not operate until the engine is warm.

check also the engine coolant temp sensor (ECT). This sensor tells the engine computer that the engine has warmed up, so if it is faulty, it could be sending wrong information to the computer. If the sensor is disconnected, wires to it broken, or faulty in full cold mode, it will tell the computer that the engine is very cold, like -40F. The computer will schedule fuel for cold conditions. This is usually way too much fuel for a warm engine and it will rich misfire, idle rough, and be difficult to start warm.

The ECT has two wires going to it and is dedicated to sending information to the engine computer. It has nothing to do with your dash gauge that shows coolant temp. That sender has only one wire and is dedicated to the coolant temp gauge.

Feb 21, 2011 | 1993 Jeep Wrangler

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I need to change the thermastat ,,, where is it and whats the easiest way


Heed of antifreeze solution temperature!!!
You must check the thermostat operating. The thermostat location for 1997 Audi A4 1.9 TDI is on back of alternator at the bottom side of the bracket.
IMPORTANT NOTE: It is NOT necessary to replace the alternator if you want to change the thermostat !!!
Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.
5. If the thermostat and the temp sender are OK the last piece out of order will be the instrument cluster.

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Dec 04, 2010 | 1997 Audi A4

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High rev, rough idle in golf


If your car is fuel injection,try changing the cold start temp sender.

Jul 17, 2009 | 1997 Volkswagen Golf

1 Answer

2000 chevy lumina. Is fan supposed to come on when car started


no fan comes on when engine cold start up .but it will come on when you turn on air conditioning or defrost on .if engine idling a while when temp get 190 degree the fan will kick on.if over heating you got air in system .wait until cools check coolant add more .crank engine let it idle few. minutes when start warming up turn off engine wait a while before removing radiator cap so you wont get scald.add more coolant .crank it again starting warming up turn off engine wait a while .add coolant .keep doing this procedure until your coolant stop dropping off .if you do this more than 6 times you got a leak some where.check crank level for signs.if oil level higher than normal.if everything looking good.when engine cool make sure add coolant to over flow jug cold level mark.

Apr 28, 2009 | 1999 Chevrolet Lumina

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