93 4.3 vortec(W) Problems HELP!!!!!!!!!!!!!!!!

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11-10-2011, 10:03 AM

IndMale44

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Join Date: Oct 2010

Posts: 19

93 4.3 vortec(W) Problems HELP!!!!!!!!!!!!!!!!

Here is what I can tell you.

1993 Chevy S10 Blazer with 4.3L vortec (W) engine.

Here is some info that I can give you I was having trouble with it running correctly it would start to stall out on me but if I gave it more throttle it would smooth out on me then it started to die on me. At that point I started checking into what could be causing the problem. I check on the Blazer forum board and Everything pointed to the fuel injection System. I took it to BRANDON AUTOMOTIVE REPAIR to have them double check the problem they had it for a day and said that they couldn’t find the problem. So I picked it up and drove it for a few days and then it started to give me problems again. At that point I decided to try and find the problem myself. I purchased a fuel injection fuel pressure gauge. When I hooked it up the pressure went to 60psi and then dropped and held at 55psi. which according to the manual was correct. I turned the gauge towards the driver’s seat so that I could see the pressure while I ran it. It started and ran ok but when I turned it I must have loosened the connection (Fuel) at the check point. Some fuel leaked onto the engine and caught fire lucky enough I was able to put the fire out before it caught the entire engine and car on fire. I then repaired all the burned electrical wires and everything I found that had burned. I was finely able to get it running after also replacing the Ignition module(which I purchased at AutoZone) I got it running somewhat after adjusting the timing on it but it still didn’t run right( it only ran ok at idle) So I pulled the Dist. Cap off and checked the location of the rotor in comparison to #1 plug I wanted to make sure I was correct so I pulled the plug on #1 Plug and turned the engine until I saw the top of the piston as far as I could in the cylinder. I then pulled the Value cover on that side off to make sure I wasn’t on the exhaust stroke (by the values not being open) I then rotated the location of #1 plug Wire in the Dist. to where the rotor was. ( timing should be 0 deg BTDC). I then pulled the Vortec plumin off and pulled the injectors and checked to make sure they all were getting fuel which they were. It still isn’t going above idle speed.