Question about Chevrolet Lumina

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I have a 1994 Lumina 3.1 at low rpm it run bad but high rpm it run good

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Check and or clean throttle plate with carburetor cleaner or a cleaner made for throttle plates . Check IAC valve - idle air control also the IAC air passage .
How To Fix Car That Idles Poorly

Posted on Apr 25, 2017

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Run fault codes
use a quality injector cleaner
check for vacuum leaks

Posted on Apr 25, 2017

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  • 923 Answers

Check PCV valve and all vacuum hoses. Check EGR valve fot proper operation.

Posted on Apr 25, 2017

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Posted on Jan 02, 2017

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1 Answer

Head lights dims out


old post day, Geo underdogs.
is engine running, seem yes, pretend yes...
high and low beams dim (means weak not low or high beams)
dim bulbs. all elements, left and right sides?
well first is battery voltage
use a $10 walfart DMM meter., (set to volts)
13.3. to 15vdc is the voltage running, on a hot engine rpm is 700+
RPM not 400. so, if all that is good, the ALTERNATOR IS doing its job, yes, the regulator is inside the alternators and changes voltage , by SENSING batteries needs, and sensing driver added loads, (accessories)
so if battery voltage is good, the what is it,
well that is easy head lamp failure
got DRL do you have the infamous, and pesky DRL daylight running lamps as the law requirements in CANADA,
next time say DRL or canada, ok?

if all lamps are dim on the HL,
the the ground to them are bad.
there are 4 bulbs , 2 high 2 low, all for dim is bad ground there.
the Headlamp relay sends 12vdc to all 4bulbs, and most read 12v or more.
the lamps are grounded by the HL combo switch on THIS car
the ground must be good to this switch 0v, HL onl.
or the ground is bad. a white/black wire called G200
if 12vdc is weak (low) to HL then the relay or wire to it are bad.
if the ground is not 0v, (no more than 0.5vdc) then the ground is bad. if the ground is good, then the HL switch is bad and if bad gets hot and smell... (melting plastic in side)
there is the full answer, sans DRL> (a longer story that)

Feb 24, 2014 | 1991 Geo Prizm

1 Answer

I have a 1994 chevy lumina euro and it won't shift into gear in the morning unless the car has warmed up 20 minutes or more


Try adding more gear oil first. Probably low. It also could be your release bearings going bad in transmission.Try adding the oil first.

Aug 11, 2013 | 1994 Chevrolet Lumina

1 Answer

1994 corvette running too rich black smoke and coughing low rpm


the brake servo needs refitting and ensuring correct torque

Jun 11, 2013 | 1994 Chevrolet Corvette

1 Answer

Idles too high at start, then too low after warmup.


Did you have it diagnosed by a scanner of some time? Sounds like you are pulling/replace instead of diagnosing the issue prior to fixing. You probably have a bad IAC sensor, but it could also be the throttle position sensor. Do have a check engine light when it does run? How many miles are on the vehicle. it could be a timing issue. I had a 95 Lumina and it turned out to be a sensor, but mileage does play a key in this issue.

Feb 01, 2013 | 1994 Chevrolet Lumina APV

1 Answer

How do you load the air conditioning compressor... from the top or bottom?


Do you mean charge the A/C system? If so, it is done by adding freon to the low pressure, (suction side) of the system while the engine is running and A/C on high setting.

Jun 28, 2011 | 1994 Chevrolet Lumina APV

1 Answer

Car blows white smoke at high rpm runs bad


hmmm...This kind of problem usually is due to cam shaft/valve timing issues. Sometimes, the cam shaft is not properly positioned and is not in sync with the distributor thus the exhaust valves open early releasing unburnt fuel. This will cause the engine to definitely run bad.
I suggest that you try to adjust your engine's timing first (cam and distributor) and then see the results. Also, remember that there is a limit to the rpm that an engine must do- about 6,000rpm is enough for high or max hp. Another information, a camshaft will only work best at a given rpm range so if you run your engine too low or too high, the engine will not work properly. In fact, there are special cam shafts for engines intended to run at high rpm while sacrificing lower rpm levels (the engine runs grumpy at low rpm levels).
Worst case, however, is that white smoke sometimes indicates that oil enters your combustion chamber, this will cost an expensive rebuild if such is the fact.

Dec 24, 2010 | 1996 Nissan Sentra

1 Answer

Hello. i have the ff. problems with my 1994 honda accord manual: 1. the engine dash "orange" light on and cant find solution from local mechanics: 2. engine rpm is 1300 when starts and 800 rpm...


first engine light is on a reason it has a code stored needs to be read,2.sounds like it needs throttle body cleaning,and3.if clutch is hard means master clutch cyl is bad if hydraulic and if manual cable is worn.











TIM...

Dec 02, 2010 | 1994 Honda Accord

1 Answer

1994 Chevy Lumina ATV power window and locks problem.


sounds like high resistance in the switch or a connector

Sep 20, 2009 | 1994 Chevrolet Lumina APV

1 Answer

1994 toyota p/u high and low RPM


you need to change your idleup solinoid so it will fix the idle up and down problem

Apr 12, 2009 | 1990 Toyota Pickup

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