Im a bit confused here 91 blazers dont have carburators stock and if it does then it has been modified other than that check to see if you have power getting to the fuel pump also question did you reinstall the ground strap to the fuel pump. check to see if you get power to the fuel pump relay. These are all questions I would Have done before pulling out a fuel pump. Note that you might want to have a friend help you cause if you turn the key to the on position the fuel pump cicuit is only energized by the computer for about 2 seconds
There are many oil seals in that vehicle, need to know which ones you changed.
It sounds like the Blazer has either jumped time or has a vacuum leak. Check the timing chain and tensioner as well as the vacuum system. If memory serves me right, that 81 Blazer still had a carburetor. The fuel filter may be plugged up. They are small and plug up easily. The fuel filter is located in the fuel inlet fitting at the carburetor. The fuel line nut takes a 5/8" wrench to remove it and the fuel filter housing nut takes a 1" wrench to remove it. Take note as to how the fuel filter came out and be sure to put the new one in the same way and don't over tighten it.
The oil filter has a remote location. Look underneath between the radiator and fan. If the black plastic shield is still their it has a access hole, marked filter.
The oil filter has a remote location. Look underneath between the radiator and fan. If the black plastic shield is still their it has a access hole, marked filter.
And you still have a skip? Probably a bad injector.
check fuel pressure i think it should be 54-60psi if not high enouth its fuel pump
Strangest thing, I let the car sit for 3 weeks and went back to drive it, now its missing terribly. I changed wires, changed fuel filter, and its still missing terribly. I had a recent tune up done before this happened. Would appreciate and feedback anyone can give about this
Assuming this van is still carbureted, the fuel filter is located inside the fuel line fitting just as it enters the carburetor. It takes a 5/8" wrench to remove the fuel line and a 1" wrench to remove the fitting from the carburetor. Take note of the positioning of the filter so not to install the new one backwards.
Check the brake light switch.
The cabin air filter can not cause a rough idle. It only filters the air for the ac/heater.
i have to same problem with my sierra ive changed the filter and it still leaks, i was told that its the oil filter adapter you can get one at autozone for about $20
Have you changed the air filter too?