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Registered
Join Date: Apr 2001
Location: Berryville, Virginia
Posts: 93
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Starter won’t turn off (Ignition switch Problem?)
I’m having problems. My car won’t start, and the starter will continue to run even with the key out of the ignition. Sound like an ignition switch problem?
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Registered
Join Date: Dec 2003
Location: MS.
Posts: 2,322
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It could be the switch, or even a bad solenoid that can cause the starter run-on problems. I have had a bad solenoid that would keep the starter cranking with the key removed from the ignition switch. I had to pull the battery connection to make it stop. I removed the wire connections from the solenoid, and found that it was still making a complete circuit, the contacts had welded together. I had to replace the solenoid, no further problems. This was not on my 911, but the starting circuits are pretty much the same. Good luck!! Tony.
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84' Steelslantnose Cab. 1953 Dodge B-4-B-108" 90,127 miles 1953 Dodge B-4-C-116" 58,146 miles 1954 Dodge C-1-B8-108" 241V8 POLY 1973 Roadrunner 440-SIX-PACK* 1986 F-250 Super Cab-460 V8 tow Newest additions- Matching numbers 1973 340 Road Runner!! 1948 Dodge B-1-F-152" 1-1/2 ton Dump body, 39,690 miles others... |
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,433
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sometimes the starter drive gear and the ring gear around the pressure plate that it interfaces with get very chewed up and the starter will hang up as it's cranking. as long as the solenoid is held in the extended position, the starter will keep cranking, even without power to the solenoid from the ign switch.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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Registered
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On my car when I bought it the cold start valve was not connected at the starter the wire was hanging loose under the car. When I hooked it up the starter would keep cranking when I tried to start it. I had to pull the battery connection. But as I live in South Florida I just unplugged it again with no problems since. I do not know what the problem was to make it keep cranking but unplugging the cold start valve was the solution of the previous owner. Cold start valve problem or solenoid problem? I did not try and chase it down but someone else on this sight might have.
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1997 328i convertible 1998 528I |
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Monkey Butt Forespin
Join Date: Jul 2007
Location: Cumberland, RI
Posts: 474
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While replacing the electrical side of the switch with an eBay version recently, and diagnosing a no-start even with the switch replaced, the switch fell apart when pulling the harness off the back (or trying to). This would certainly be a potential fail point, but I think it's less likely than the other items mentioned.
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Fred Hurder Jr For Tech Questions: '84 911 Carrera Cabriolet (US) Weltmeister Chip, Fabspeed Euro Pre-Muffler, M&K 1-in / 1-out Muffler 22 ERP /29 Sander Hollow T-Bars, Bilstein HD Struts / Sport Shocks ERP Poly-Bronze Bearings (A-Arms & Spring Plates), Stock Swaybars Turbo Tie Rods, '92 C2 5-Spoke wheels w/ 1" adapters, Drilled Zimmermans Yes, I drive mine as much as possible. If it's >32° & sunny, I've got the top down. ![]() |
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