Question about 1991 Chevrolet Lumina
Check for fuel pressure at the motor
Check for spark or injector pulse
Spark Plugs been in the motor more than
3 years, regardless of mileage ? Change them
Battery any good ?
Use the correct fuel,not a higher octane ?
Posted on Nov 15, 2014
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Posted on Jan 02, 2017
It is one of 2 things fuel pump or Crank Shaft Position Sensor. Best bet would be the Crank Shaft Sensor, and what that does is tell the computer where the crank is and when to fire the right plug at the right time
Posted on Feb 18, 2009
Electrical problem can be the most frustrating and difficult to diagnois especially when you are not phsyically at the vehicle. I will attempt to point you in the direction you should be looking. Right off the bat it sounds as if you are running low on power when the demand is high. First thing to suspect is the battery. For some reason it is low on electrical power.
Next thing is to figure out why. The first thing I would check are the cable ends. Are they corroded? It may not look as if the are, but they still could be. Clean them thouroghly.At times, when they are corroded that may be enough to stop the flow of current from the alternator to keep the battery charged up. If they look good, you may want to put your battery on a charger. Pay attention to the meter and see how much the battery is down. If it taking a lot of charge it could be it needs replacing, but charge it up and see how it works. Remember when charging a battery, first remove the caps and see if the cells are low on water. If they are your battery is probably the culprit. When a battery starts using water it's usually because some of the plates have over heated and warped, which causes them to touch each other and short out. BTW, when charging a battery make sure you remove the caps during charging. So leave them off after you check the water, AND if you need water use only distilled water. You can buy it just about anywhere, grocery store, Walmart, KMart, etc.
Check your altanator belt and make sure it is tight and not streached out. That could also be why the battery is not keeping up with the demand.
If that dosen't cure it, next take your battery in and have it tested and see if it is up to snuff. I hope this helps you and please let me know through your rating of this advice.
Posted on Mar 13, 2009
there is a injector driver module relocation kit with a heat sink to mount it to because the module in the orgional location the module would overheat. also check the glow plugs the quick easy way to do this without removing them is to unplug all the glow plugs then hook a jumper wire up to battery positive and and touch it to each glow plug there should be a spark and if there isn't then the glow plug is bad.
Posted on Mar 16, 2009
I'm willing to bet you have bad fuel injectors. Back in 91 they had a problem with on injector shorting out causing the rest to short out. I have a 91 that had the same problem, and my injectors were junk.
Posted on Dec 17, 2009
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