1996 850 Has spark, compression, fuel, won't start

Post by **Ozark Lee** » 05 Jul 2014, 18:06

The fuel pressure regulator has a vacuum line that goes back to the vacuum tree. If you remove the vacuum line from the regulator it should be dry. If the line is wet then the diaphragm in the regulator has ruptured.

Book spec on fuel pressure is 43 PSI but that will vary a fair amount based on the quality of the fuel pressure gauge. I have a $35.00 gauge so I look for +/- 10% and if it is even close I call it good.

...Lee

Post by **phils94850** » 05 Jul 2014, 19:25

the car needs to be running for the cam sensor to throw a code. I had a no start issue with mine, replaced the cam and crank sensors and what fixed it was the coil. Have you tried it yet ? Having spark doesn't mean its enough, what color is the spark ?

beigg · Post by **beigg** » 05 Jul 2014, 22:39

Fuel relay could have took a dump or the ignition wire going to the starter broke off. You have an alarm on the car?

vmcrcr · Post by **vmcrcr** » 06 Jul 2014, 12:25

Getting about 40psi fuel pressure, have not calibrated the gage with a known pressure, so I'm saying it's ok.
Spark is yellow/blue. Hard to tell in bright daylight.
No alarm in the car that I can find.
This is what I brought home from the salvage yard yesterday, where do I start?
Sorry, forgot to turn the sarcasm font on and insert a

beigg · Post by **beigg** » 06 Jul 2014, 19:27

I'd verify that the #1 piston is at stroke for ignition spark. If that is occurring properly I'd check to make sure the injector for ignition and stroke timing is sequenced correctly. Should all that check out, make sure you dont have an obstruction in the intake system. Rags go unnoticed and can make the best of the best left scratching there head.

vmcrcr · Post by **vmcrcr** » 13 Jul 2014, 16:54

So here's the current status: I let the car sit for a week with the plugs out of while I was working on my wife's car. Put the plugs back in and it started right up, smoking like crazy from all the oil I put in the cylinders (lawnmower starting syndrome). Took it for a ride down the street to clear the blue fog out. 7-8 miles down the road it the engine just shut off. No warning, no sputtering, just quit. Now I'm by the side of the road waiting for AAA to come get it because it won't restart......
Sigh. I'm beginning to rethink my decision to purchase this vehicle.

Post by **abscate** » 13 Jul 2014, 18:45

You've got something electrical wrong with this car. Did you check for spark after the no-start ?

Have you replaced crank and cam sensor?

vmcrcr · Post by **vmcrcr** » 13 Jul 2014, 20:34

I have not checked for no spark yet, had to get the car home first. Tomorrow after work. I have not replaced any sensors yet, having spark was an indication all the sensors were functioning. Hoping that when it died it threw a code that will give me a direction to go in.

Post by **abscate** » 14 Jul 2014, 04:27

Take the distributor cap off and inspect for cracks and grunge. I understand it was running fine before, but it's time to go back to the basement and work your way up from the bottom without assuming anything.

Post by **rspi** » 14 Jul 2014, 09:21

If you have spark, decent fuel pressure, I will come purchase the car from you.

Once I get it I would replace the fuel injector relay and go from there.

1996 850 Has spark, compression, fuel, won't start

Re: 1996 850 Has spark, compression, fuel, won't start