I have a 1995 GMC Sonoma with a rebuilt 4.3 liter vortec v6 and cmfi injection the engine turns over but won't start before it would start sometimes and iff it started the first try you were good if not it wouldn't till hours later or the next day. I replaced the fuel pump and ignition module they both work. The engine will start on ether (starting fluid) so I know its a fuel problem its not the crankshaft position sensor and I dont think I have enough fuel pressure but I think the only thing before the test port and past the pump is a filter and it sounds like a mechanical failure can anyone help me figure out the problem
have the same problem?
Saturday, June 24th, 2006 AT 10:20 PM