94 Safari 4.3 W AWD running bad

[breeze9]

I have a 94 safari with the 4.3w engine in it and for the past week it has started to misfire when trying to pick up speed. It got to the point where it would not start at all. I changed plugs wires cap rotor all A/C Delco and it started right up but had the same problem. It feels like there is a rev limiter in the darn thing. The fuel filter and pump are new so I do not think my issue is with fuel. No check engine lights are on at anytime. Anyone have a clue where to start?

[breeze9]

Originally Posted by breeze9

I have a 94 safari with the 4.3w engine in it and for the past week it has started to misfire when trying to pick up speed. It got to the point where it would not start at all. I changed plugs wires cap rotor all A/C Delco and it started right up but had the same problem. It feels like there is a rev limiter in the darn thing. The fuel filter and pump are new so I do not think my issue is with fuel. No check engine lights are on at anytime. Anyone have a clue where to start?

OK a quick update. Key on fuel has 64psi. key off holds 58 psi for over 4 minutes. Now will only start most of the time with starting fluid. Every now and than will start right up without it but dies as soon as you touch the peddle. Help please!!

[boatbuster]

I had a similar issue on a 97, start by checking your advance on the distributor, if it does not advance your timing when you accelerate you will get a similar issue, if that is good pull your distributor and check if the bushings are worn. If you are not sure how to pull the distributor - take off the cap, mark on the engine where the rotor is pointing and also mark the body of the distibutor at the same place, pull off the 9/16 bolt that holds the distributor lock on the side and gently turn the rotor counter clockwise while pull up on the distributor. Make sure nothing falls in the hole. Now grab the main body of the distributor with one hand and the gear at the bottom with the other and wiggle from side to side, if you get movement then your bushings are worn. I found a replacement for mine at NAPA for $157 for a rebuilt and had no issues from there. To replace the distributor simply realign the marks, make sure not to crank over the engine or you will need to start from scratch - not fun on an astro. Also make sure your oil pump shaft is lined up. If the distributor does not go in easily do not force it, you are probably off by 1 tooth, just turn the gear 1 tooth and try again, should slide in easily. It is a good idea to recheck your timing with a timing light when done.