Originally Posted by fuddyduddy121
I don't have the 96 manual, but the first thing I would look at is the fuel pump relay. Maybe someone can tell us the location of it...
That was replaced last week, before replacing the fuel pump with a new Walbros model. New fuel pressure regulator in December (along with the new Delco pump). New filter last week too. Another thread on this thing started at "Another Fuel Pump?", and I kind of jumped over here looking for more answers.
To Recap: (tell me if I should start another whole thread)
December 2003, intermittent starting, dying, causing a tow to the dealer for $700 in repair replacement of fuel sending unit, pump, and regulator.
That seemed to fix the problem until 2 weeks ago. It wouldn't start, left it overnight at Nate'* work, arrived in the morning with a tow truck, and it started up, but we towed it home for lack of trust in driving it.
At home, we changed the fuel pump relay, everything worked, started drove fine. The next day at work, going to lunch, it died again, but he got it started, and brought it home.
Changed the fuel pump to the Walbros, made sure all the connections were good.
Fired right up, went to the gas station to get more gas (started with 1/4 tank, now 1/2). Came back home, got in the drive way, revved it mildly, and it died. Started again for about 2 minutes, and died, never to start again.
Power is not getting to the pump (does not make a sound when key is turned on).
Power windows do not function for some reason. The front ones are down, and none of the windows respond. All the fuses were removed and tested with a digital multimeter, and were OK. All the relays were pulled and re seated to insure good connections.
It sits in the garage now and I have no clue what to do from here. I am suspicious of the Ignition switch, if one part controls the accesories like the interior lights, that is working, but no fuel pum/pressure, or windows. I DO have headlights and stereo, etc.
I also wonder about the VATS system and it'* interconnection to the aftermarket remote start and alarrm. If there is a spare key in the system, hidden under the dash, it may not be making connection for the chip. Would that not allow the pump to work? How would this relate to the windows? What is the location of the window relay, if any?
I have also read (and I have been told) that the ignition module could be the culprit, all by itself. My question (before paying the big bucks for this) would be "does this control the power to the fuel pump, independent of the VATS stsem?" If that is so, I would be most suspicious of that. What about the windows?
In this thread, " the PCM controls the fuel pump" is mentioned. Does this mean that the PCM should, or could be replaced?
I know these are a lot of questions, and I also wish I could have a few of you guys at my doorstep scratching your heads right along with me, because maybe then we could get this figured out. I honestly can't afford to take another step without a good reason, or I would have done it by now. Maybe looking at the above paragraphs all together (rather than in multiple posts and subjects) will put a different perspective on this problem for you gearheads.
I can't thank everyone enough for your advise. I need it bad.
John (for son, Nate)