1995 850 GLT timing question
#1
1995 850 GLT timing question
After trying to start with new spark plugs and wires in, I would get a bad misfire. Tried again, and the motor would crank but wouldn't start. I realized I mismatched the spark plug wires and fixed it, yet it still would only crank. The wires are firmly in their correct spot now; I have spark, fuel + pressure, and air. Do you fellas think the mismatched wire would cause the timing to jump? If so, how big of a headache will this be? Thanks.
#4
#6
Welll..... For a no-start, we typically begin by pointing out that there's a relay on top of the radiator called the "main fuel injection relay". The plug that plugs into this relay was held together by some soft vinyl boots that disintegrate and then it'll just unplug itself inside that plug body and you can't even see it. So when you work on the car, it's not uncommon to lose power at this point. When you lose power, the OBD-1 diagnostic thing will quit working and the LED will just be dim. That's a clue. I guess it powers the fuel injectors, but I have observed also that you'll lose spark. It powers a pin or two on the PCM and so that evidently knocks out the ignition system. On a 95 I suspect you actually have a separate Fuel computer and ignition computer anyway, FWIW.
The cam/crank sensors tend to be pretty reliable but they're not forever either.
The fuel pump relay tends to be pretty unreliable. I always jumper mine to see if that's the problem, but if you don't have spark, then obviously don't bother. Concentrate on getting spark first.
As for as getting the spark plug wires going to the right plug, that's on you, of course.
I have never found Hoonks expectation to fully serve me. It's logical but it's just not enough in real life. I have close friends that in your situation would unscrew and then reinstall the spark plugs 2 or 3 times. I don't do that.
The cam/crank sensors tend to be pretty reliable but they're not forever either.
The fuel pump relay tends to be pretty unreliable. I always jumper mine to see if that's the problem, but if you don't have spark, then obviously don't bother. Concentrate on getting spark first.
As for as getting the spark plug wires going to the right plug, that's on you, of course.
I have never found Hoonks expectation to fully serve me. It's logical but it's just not enough in real life. I have close friends that in your situation would unscrew and then reinstall the spark plugs 2 or 3 times. I don't do that.
Last edited by firebirdparts; 08-22-2021 at 04:34 PM.
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