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Originally Posted by that1guy
 <--- I love this truck this much!!! 1995 4dr 4x4 blazer obviously
A couple of weeks ago, my lovely truck decided it no longer wanted to start but only when it wanted to. I have narrowed down the issue and have been able to talk the truck into starting when I wanted it to, though I doubt my fix was good enough.
to begin with. that lovely fuel pump sound you hear immediately after you turn the ignition switch on. If i dont hear that sound, I know it's not gonna start. through arguing (and i mean litterally) with the truck one afternoon i figured out that the fuel pump relay was located in my glove compartment. and even more convenient was the horn relay located right next to it. Convienient because both were identical. Simply swapped them out, and walla. Truck worked fine without any problems. untill now (a month or so later). Now im having the same problem, but this time, if i pull the relay and put it back in, or maybe have to wiggle it a little then it will start. sometimes i may have to do this 2, 3 maybe 4 times or so before it will. Am I missing something here. When it works, it runs like a dream, no problems nothing. just as soon as you shut it off, it may not start back up without me having to mess with the relay. I would more than love to look more into my wiring, however i cant seem to fine any kind of schematic to show me what and where i need to be looking. and at this point. I'm convinced its an electrical problem.
any help or thoughts would be really nice right about now |
This is probably going to get me into trouble with 51% of the population, but here goes...
Your truck is exhibiting typical problems associated with a Y-chromosome deficiency. The evidence is all there:
- You have to argue to get any kind of cooperation;
- Giving it new things provides temporary appeasement;
- All the logical conditions necessary for success are present, yet it refuses to accept that and function normally;
- The problem surfaces again in another 28 days.
Seems pretty clear to me. If you strip a cell and look at the strings of base pairs, you'll probably find that is suffers from the debilitating genetic aberration caused by the lack of a Y chromosome.
More specifically, there may be a problem with the relay socket, wiring, or it may only be coincidental that the relay "solved" the problem and the root is elsewhere. The ignition switch is not above suspicion in this case, but analysis with a meter while the problem is occurring may be the best way to determine that. Even if the vehicle has an anti-theft system, if the starter will operate (whether or not the engine starts) the security system is not likely a problem.
The fuel pump circuit should look something like this:
Either that, or you leave it completely alone for 4-5 days while you take care of your needs on your own (
walking?), wait for the episode to end, and be prepared to deal with it all over again next month.