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Here's a new one for you...... 700

90 760 T 225,000 miles

After a week of struggling with a no start/hard start, here's what I have found out:

Car starts (not as instantaneous as before issues developed last Monday, but it starts) and runs for 15-16 minutes at idle. After 15.5 to 16 minutes; car stalls and won't restart until waiting for some length of time. (Not sure as I have tried this one two consectutive nights in 30 degree C weather.

What is the correlation to the 15-16 minutes prior to shut-off? IAC? O2 Sensor? CAT?!? T Stat?

I have verified that the in tank pump is running (heater hose to ear)but am not sure of it's condition and that the main pump is still running fairly quiet. Pulled the vacuum line off the FPR tonight while running and idle increased a little......

I am stumped but not discouraged....any of you veterans have any ideas?!? Many thanks in advance!!






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