20 Most Recent 1991 Chevrolet S-10 Blazer - Page 7 Questions & Answers

I would have to email you the instructions due to pics and length of instructions. It will be how to remove the oil pan and once the pan is off, 2 bolts to remove the pump and install the new one. The hardest part is getting to the pan usually. iambanshee74@yahoo.com

1991 Chevrolet... | Answered on May 17, 2011

2 transmissions: a 700 R4 and a 4L60. They put those transmissions in the S10 Blazer from 1983 - 1992. i hope this helps and good luck.

1991 Chevrolet... | Answered on May 09, 2011

im not sure on this one but i have worked on pressed in balancers and slide on, the slide on have the key way and the press on dont, the balancer can go on anyway, theres no tool, clean the shaft with some emery cloth and the same for the balancer, then if its press on just slide on the crank or hold on the fornt of crank and use a hammer to get it on enough until the bolt can screw in a few turns, then you will use the bolt to drive it back on the crankshaft, an impact gun would do the job. if you dont have a gun then you will need to have someone hold the flywheel with a prybar, stick ythe prybar or big flat head screwdriver into a tooth on the flywheel and lock it form turnning and then tighten the crank bolt until the balancer is on. good day. also apply some permatex to bolt before threding it in to avoid oil leak. good day.

1991 Chevrolet... | Answered on Apr 30, 2011

You stop using the vehicle NOW


It will have to go to a repair shop

I would suggest a local trans shop, first

It could be a leaking seal,but one trip
down the street, and you could destroy
the drivetrain in a hurry, if your fluids are gone

1991 Chevrolet... | Answered on Apr 26, 2011

GOD BLESS your mom...On back of fuse door there may be a diagram otherwise pull each fuse & check if good .. then go to door pull out swich & work your way back w/ vom till you have power ,,

1991 Chevrolet... | Answered on Apr 21, 2011

4170636.jpgThis is all I've got.Hope this helps?

1991 Chevrolet... | Answered on Apr 12, 2011

Hi, the indication is that your computer is not receiving a good signal from the knock sensor. Recommend you check the connector on the sensor and the wire. Also make sure the sensor isn't loose in the block. If those look good, you may want to just replace the sensor. A new one is $30 at autozone. Without the knock sensor signal, the computer will default the ignition timing toward a less fuel efficient value. The sensor looks like the picture below and is mounted in the engine block. You may have 2 knock sensors--one on each side of the engine. Sorry, but I could not find a good picture of the location. I will keep looking for one, though.


1991 Chevrolet... | Answered on Apr 08, 2011

When was last trans fluid & filter change? Should be done every 30k or 3 years - sooner if you do any towing. I'd start there and have system flushed at same time.

1991 Chevrolet... | Answered on Apr 04, 2011

You could remove the rear drive shaft but transmission fluid would leak out if you started to drive it on the road you could do this for a test olny . And would not recomend driveing the vehicle off the front wheels olny they are not designed to run on dry pavement the front carrier wouldn't last vary long if you could stop the oil from leaking out of the back of the transmission with out the drive shaft What you need to do is pick up a rear carrier from a junk yard and fix the rear wheels Good luck with it

1991 Chevrolet... | Answered on Apr 01, 2011

The fuel pump specs are 14 psi. and 20 gallons an hour.

1991 Chevrolet... | Answered on Mar 25, 2011

Have you noticed if it is overheating? It may be in the ignition system as well. It may be bad plugs, wires, dist.cap. HJave you checked anything yet? Can you get any codes?

1991 Chevrolet... | Answered on Mar 16, 2011


1991 Chevrolet... | Answered on Mar 10, 2011

Fuel sensor inside the tank is the problem. Usually to fix this problem you need to take the fuel tank down and replace the whole fuel pump assembly.

1991 Chevrolet... | Answered on Mar 07, 2011

Hasn't been adjustments since back in the late 70's......

1991 Chevrolet... | Answered on Mar 05, 2011

does motor turn over to start and if so, do you have spark?

1991 Chevrolet... | Answered on Mar 05, 2011

the code 1-2 is just telling you that you're in diagnostic mode (means nothing) fuel pump could be going out or fuel filter

1991 Chevrolet... | Answered on Mar 03, 2011

You have to count the flashes. It repeats each code three times. Those flashes are the number codes. All of the codes are two digits. One flash is '1', then short pause and two flashes would be '2'. Since the codes are two digits that is a code '12' and it repeats that code two more times and then starts with the next stored code. It always starts with a code '12' to let you know it is in diagnostic mode and the last code is always '12' to let you know it is done flashing codes.

1991 Chevrolet... | Answered on Mar 03, 2011

You'll want to check the computer module in the distributor - better parts stores will have a computer that can test these - as well as making sure vacuum is getting to the right places.

1991 Chevrolet... | Answered on Mar 01, 2011

if it is an automatic trans: it would be a TH700R4

1991 Chevrolet... | Answered on Feb 27, 2011

sounds like a catalytic converter - runs good but lacks power - the back pressure keeps the engine from being able to accelerate under load - good luck :O)

1991 Chevrolet... | Answered on Feb 19, 2011

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