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Registered
Join Date: Jul 2001
Location: Phoenix, AZ USA
Posts: 503
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Help !!engine Shuts Down While Driving
87 944, the engine is shutting down while driving..just quits flat out..no coughing or sputtering..just flat line off. It usually starts right back up after a few sec. of cranking. It does it twice and then runs fine. sometimes it will take 5 to 10 times of cranking it over to get it started.
1. usually happens on cold start...warming it up seems to make no difference.
2. thought it was my shiny new hood insulation, with the foil on it..coming in contact with top of ignition housing..cut away an area of foil above ignition..still does it
3. replaced the coil with a known good
4. replaced fuel press. reg. with known good
5. all sensors have been replaced within the last 2 years
6. I know for a fact that the cat conv. is shot..pieces of the "bisquit" are shooting out of the exhaust..one piece was as large as a small apple. and the piece was melted.....SO are the other pieces (yes, rattles when I drive) clogging my exhaust..I know that this would make my engine run crappy but all out quit. btw..magnaflow high flow cat conv. only 2 years old. I know that a one point this summer the engine was running to hot (mixture off) it actually melted the black rubber bumper above exhaust outlet. so probablly destroyed converter.
7. could the ignition have been shorting out from the foil on hood insulation and ruined the rotor..I know theres a capacitor in there (rotor) .
8. could it be the electrical portion of the ignition switch..I had a chevy truck that did the same thing years ago..and it ended up being the ingition swithc in the steering column...did the same thing..engine would shut off while driving
9. Help !!!!
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