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stalling, intermittent. V70-XC70

posted by  someone claiming to be mikebox on  Tue May 24 17:39 CST 2022 [RELATED]

ok, I started the car. it started fine cold. checked fuel pressure. 41lbs prior to starting after key on. started it. fp running about 42lbs. reving it up, it ran between 42 and 44lbs. steady.

let it warm up. blipped the throttle and it stumbled and died. i restarted it, took a few cranks and started rough then idled fine. I blipped the throttle again and it died. Did this a couple of times, fuel pressure always constant at 42-44lbs so i think i can rule out the fuel pressure, pump, and relay. pulled the coil wire from dist and cranked it over...big strong but orange/yellow spark. I would have expected it to be blue. Not sure on this.

also notice new fairly big oil leak somewhere near the cylinder head under the intake manifold. never leaked oil before. pulled the oil cap and it is under slight depression. (no positive pressure).

cranked some more. it would not restart. acted like it wanted to a time or two but would not catch. I sprayed a bit of starting fluid in the intake..did not start but did backfire back through the throttle butterfly.

It seems to be a problem as soon as it reaches normal operating temperature.

Thanks





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