20 Most Recent 1991 Chevrolet K1500 Questions & Answers

replace ball joint

1991 Chevrolet... | Answered on Feb 09, 2019

Could be the tps. You can test with a multimeter using procedure at link below.
Repair Guides Fuel Injected Electronic Engine Controls Throttle Position...

1991 Chevrolet... | Answered on Nov 02, 2017

It appears to be a known problem! Read all the links on this page. Things suggested, bad clutch on the fan, worn impeller in the water pump, blown head gasket causing pressure in the system and preventing water flow,

91 chevy 1500 overheating Google Search

1991 Chevrolet... | Answered on Aug 02, 2017

Try timing and/or vacuum advance, assuming it is that old. Newer, cam shaft timing sensor as well.

1991 Chevrolet... | Answered on May 30, 2017

How long since over-all tune-up? Use a gage and check proper fuel pressure, tbi fuel pressure 9--13 psi. 5 psi won't start and run a v8. In my opinion. I don't know liter size of engine?
Can you check applicable trouble codes? Your obd1, you should be able to check some codes, if your check engine light works. You use a jumper wire between the A & B terminals at your datalink connector, then turn the key just till the dash lites come on, then the mil starts flashing, you count the flashes to get the codes. Your looking for two digit codes.
If you think ignition and or valve timing is off, check it. My info for ignition timing, just says to check the decal under the hood for specs.

1991 Chevrolet... | Answered on May 27, 2017

1988 swb chevy 1500 steering column wiring diagram Google Search
Fuse box diagram.
Fuse box is under the dash behind the steering wheel.

1991 Chevrolet... | Answered on Aug 10, 2015

You can replace the catalytic converter itself, if you can find the spare part, however outside of a refurbishing plant special purposed for catalytic converter reconstruction/repair, you won't be able to "fix" the catalytic converter itself.

1991 Chevrolet... | Answered on Aug 04, 2015

Check your cluster connector for loose or damage pins Inside your connector good luck

1991 Chevrolet... | Answered on May 09, 2015

whats the year make and model ?

1991 Chevrolet... | Answered on Feb 23, 2015

Disconnect battery, block rear wheels, jack up vehicle . there are only 2 bolts holding starter up, make sure truck is not hot..sorry should have said that first...any how I always cut a 4in x 4 in block of wood because I never seem to have truck high enough,,,,and how remove 2 bolts...DO NOT LET IT FALL....gently lower starter,,,there are 2 wires that come off..one goes to center bolt and second smaller wire goes onto small bolt....make sure you know which bolt to put smaller wire onto....once your done DOUBLE check and make sure the wires are not touching any thing else. ( can short out starter)....clean off bolts and put starter back in...and replace bolts....double check wires....I always do a start before lowering....once your sure you got it right lower truck and remove blocks....just a note I would NEVER buy one from junk yard or remaned.....better to have a brand new one with warranty...and allot of places like advance will give military discounts and a discount if ordered online and pick up same day at store.....GOOD LUCK

1991 Chevrolet... | Answered on Feb 22, 2015

there should be a front diff lock actuator right in the side of the front differental that has an electrical connector that u have to unconnect and unscrew the actuator and replace. this part will run you about $100 and should take about 10 minutes to install. or another alternative is they have a manual kit out that replaces the actuator and it is a pull cable instead of an electrical job.

1991 Chevrolet... | Answered on Feb 21, 2015

Yes the switch on the top of the transfercase

1991 Chevrolet... | Answered on Jan 16, 2015

a matter of interest why do you want to know what size the orifice is as if you take the egr valve off some don,t have a gasket some do but they cannot be altered the are standard fittings if i know why i may be able to help you with what it is you are after yates210456

1991 Chevrolet... | Answered on Nov 14, 2014

check the 4wd switch on the transfercase and wiring sounds like its shorting out. Fuses only blow when theres a short

1991 Chevrolet... | Answered on Sep 02, 2014

If you can use a jumper to run the fuel pump, does it get fuel past the fuel filter? If not I would replace the filter, If that doesn't work , then I would suggest the problem is in your wiring and most likely a loose ground wire or even a fuel tank ground strap. which could be one of it's mounting straps. If none of this helps then re-post with the original problem before you started changing parts... Good Luck

1991 Chevrolet... | Answered on Jul 28, 2014

these are one unit. The starter and the alternator are one. System is stupid, i believe. But it is what it is. This is on the outside of the engine. You could replace it. $5700 seem really high to me, unless the part costs $5500. Look up the parts cost. Go to alldatadiy.com. Buy it for up to $30. alldata will tell you how to replace the part.

1991 Chevrolet... | Answered on Jul 10, 2014

Had that problem on mine once it was a small relay about 1 inch sq. that had a red reset button on it, all I had to do was push the button. Now finding the relay was a problem. It was next to the battery switches, but no where near the batteries.

1991 Chevrolet... | Answered on Jul 07, 2014

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