If it is a 4cyl, passenger side front wheel must be removed then remove a-frame inner fender mud flap and you should be able to see it back by the firewall.
under the distributor cap
For a 1991 Chevy S10 2.5L engine the firing order is: 1-3-4-2 . The distributor rotates clockwise.
on the fire wall on the passenger side
The 2.2L engine doesn't have a distributor.
restabbing distributor and setting time I'm replacing 4 cylinder motor in a 87 Chevy s10 how do I install distributor and get the truck in time
If that vehicle has the 2.2L engine, it doesn't have a distributor.
In the distributor.
10 degrees advance
how to replace the rear seals on a 1991 Chevy S-10 pick-up truck
No, a 2001 Chevrolet S-10 rear end will not work on a 1991 Chevrolet S-10.
That would be the distributor.
Analog dash IA a 1991 chevy s-10 blazer