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frustrating starting problem 200

posted by  ianaré on  Tue Jul 1 03:08 CST 2003
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Hey all,

Here's my dilema:

88 240 DL. I guess I'll start from the begining. Car was driving fine, parked, tried starting up again, will not start. Will crank and crank and crank though. Checked spark at coil and all 4 spark plugs (spark plugs are less than a month old). Timing belt OK. Checked MAF, temp, oil sensors - all within allowable range. Compression good. (yes i do carry these tools around with me :) )
You guessed it, no fuel.
Unhooked return fuel line from pressure regulator - dry as bone. Poured some gas into intake manifold - started right up, then died in less than a minute.
In tank fuel pump was defective. Replaced fuel pump and strainer. No go. Checked to make sure fuel was getting to 2nd pump, it is. Inline pump works, will shoot out gas at a much higher pressure than the flow from the intank one. Replaced fuel filter for the hell of it. Fuel getting past filter. Fuel getting to fuel rail - BUT RETURN LINE STILL DRY! AND WILL NOT START! WTF???
I can think of two things at this point: fuel injectors or pressure regulator. Seems unlikely all 4 injectors died at the same time, since they are getting voltage (either .5 or 5 volts - don't remember which). I don't have a vaccum gauge to test the regulator. I can borrow a fuel pressure gauge.

Any ideas on some tests i can do to find the problem? Any know issues with this sort of problem? Please help. I am starting to feel a deep hatred for this car.

- ianaré






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