Conesmasher Posted August 1, 2007 Report Share Posted August 1, 2007 Ok gentleman, I need to utilize your collective knowledge and experience. I have a family member who has a 95 Pontiac Firebird Firehawk convertable. This vehicle is 100% stock. While making intown(short distance) trips, upon return to the car, it will either not start or not fire upon all cylinders. Is this a typical problem? Quick fix? They have taken it into the dealership, but the dealership was unable to duplicate the problem. Someone made mention to them that they need an "in-line" fuel pump, but the only time I've ever used those was in an aftermarket situation and that was something totally different. Any ideas???? Quote Link to comment Share on other sites More sharing options...
Guest drumer919 Posted August 2, 2007 Report Share Posted August 2, 2007 optispark.... Quote Link to comment Share on other sites More sharing options...
caseyctsv Posted August 2, 2007 Report Share Posted August 2, 2007 optispark.... +1 - that's where I would start anyways. Seems to be the root of all "missing", "rough idle", and tough starting problems. Quote Link to comment Share on other sites More sharing options...
Kawboy1647545515 Posted August 2, 2007 Report Share Posted August 2, 2007 +2 for Opticrap Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted August 2, 2007 Report Share Posted August 2, 2007 Ignition control module. It's getting heat soaked. The Opti would show up more around high-RPM misses at first 90% of the time and work it's way down to the lower RPMs, but usually doesn't cause a no-start condition. Remove the coil bracket bolted to the block behind the intake ducting in front of the driver's side head and remove the control module, which the black rectangular thing. Clean the mounting points thoroughly, reapply a small film of dielectric grease, an see if that fixes it. MAKE SURE you have all of your grounding points down tight on the bracket as well and to the block. If this doesn't work, drop the $30 on a new module. Step two (if the module doesn't do it): Replace the coil itself. Same bracket, similar procedure. $35 for an aftermarket unit from Jegs (LT1s like Accel or Mallory). Don't use MSD. You've been warned. Quote Link to comment Share on other sites More sharing options...
Conesmasher Posted August 2, 2007 Author Report Share Posted August 2, 2007 Thanks guys, we'll have to give it a run. Quote Link to comment Share on other sites More sharing options...
Conesmasher Posted August 2, 2007 Author Report Share Posted August 2, 2007 They took it to a dealer today and claim it's the fuel pump. Any arguments? Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted August 2, 2007 Report Share Posted August 2, 2007 That was their first mistake. A fuel pump usually will not cause an intermittant no-start and random misfire issue. What does the documentation say, and what dealership? They are so gonna get boned on the dropping of the gas tank procedure and the parts/labor, just to find out that's not the problem. Quote Link to comment Share on other sites More sharing options...
smokin5s Posted August 3, 2007 Report Share Posted August 3, 2007 is it a firebird or a formula or TA? I think everyone is thinking that it's an LT1 and firebirds are v6's.... if it's the v6, what version? I had a buddy with a '95 v6 with the 3.4 litre in it.... he had a similar issue and it was the crank position sensor (or maybe it was the cam position sensor) Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted August 3, 2007 Report Share Posted August 3, 2007 He said Firehawk, so it's a LT1 car. Quote Link to comment Share on other sites More sharing options...
lawnman Posted August 3, 2007 Report Share Posted August 3, 2007 I know you are talking about a firebird ,but I had the same problem on a Volvo and it was the cam position sensor. So I agree with smokin5s Quote Link to comment Share on other sites More sharing options...
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