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Hello folks- I've got one that's kickin' my butt big time.
The car: 87 244DL, B230F, AW70 auto, 230K +/-
The symptoms: driving at highway speeds, stalls and dies. SOmetimes stalls momentarily and recovers, usually has to be restarted. Does sometimes stall at idle. Sometimes goes for hours without reoccurring. Sometimes stalls again in 1 minute, or 5, or 30. Does occasionally seem to not want to recover from releasing the throttle, but usually does come back up to a proper strong idle without stalling. Historically, as in for the last year or more, stalls when you put it in reverse- sometimes. Never stalls when you put it in drive.
Tonight the symptoms got quite bad and frequent. The car stalled on her 5 or 6 times over a 1/2 hour trip. She finally pulled over and called us, we drove up to see what the trouble was. I unplugged, cleaned and tightened the AMM connection (a previous problem on this car) and it fired immediately. It did not stall for several minutes there on the side of the road so we called it good and headed out, following her. Drove 1/2 hour, no trouble. After another stop, the second leg of the trip didn't go so well. The car died out multiple times in 20 miles. Each time it was able to recover and restart, only to die again 1-5 miles down the road. WIth a high-speed highway section coming up, it seemed prudent to leave it in a parking area and come back tomorrow.
What's new on the car: dist cap, wires, rotor, plugs <5000 miles. Fuel pump relay, 25A fuseholder. Coil (a long story). In tank pump, fuel filter.
I swapped my fuel pump relay with hers, and drove home on hers, no problem. Her car kept acting up even with my new fuel pump relay installed. I had a spare AMM in the trunk so I replace the rebuilt unit that was in this car with it. No luck, still dies 2 miles away.
I can't find a loose connection anywhere, though the red lead to the 25A fuseholder looks like it could use a new crimp. Reading the 700 FAQ, it seems to maybe point to engine ground points. I'll check this out tomorrow.
Also, after a stall, I've checked for spark immediately- and it has strong spark. I was hoping perhaps I could isolate it to the Ignition Power Stage but that doesn't SEEM to be thr problem- I'm not ruling anything out yet.
Meantime, anyone got any ideas? Thank you in advance.
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Rob Bareiss, New London CT ::: '87 244DL/M47- 221K, 88 744GLE- 202K, 91 244 181K, 88 244GL 145K
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