BAC Forum
General Boards => Technical Support => Topic started by: Bob Disney on December 29, 2022, 06:47:29 PM
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As I backed into a camp spot, my engine died.
I have nothing at the keyswitch.
I do get a light click out of the electrical bay under the driver seat.
Appears it is coming from a small silver cylindrical piece of equipment looks kind of like a garbage can.
It looks like a relay of some sort, but it is not allowing power from the left side of the terminals to the right side of the terminals.
The row of circuit breakers on the hot side seem to power everything the low of circuit breakers on the right side has no power at all.
Could this be the problem?
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It sounds like you’re describing the starter solenoid. Have you tried the Battery Boost switch on the dash? If your chassis batteries are weak this will allow the Coach batteries to aid in startup. Best of luck!
Larry
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It sounds like you are describing the ignition solenoid in the front electrical bay outside under the driver's seat. If that solenoid has died, then the ignition bus bar will get no power and the coach will not start... among many other problems.
https://beaveramb.org/forum/index.php/topic,11477.msg77208.html#msg77208
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Is that goes bad will that kill the motor on a diesel?
I’m totally baffled
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Is this something I should jump and see if the the ignition get power or can I burn something up?
Looks like I need a very large gauge jumper wire
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I’m no mechanic, but I believe if that solenoid goes bad it will prevent the starter from being engaged to start the engine, but if the engine is already running I don’t think it will stop it from running. I’m not positive about that though.
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Bob
It does sound like your ignition solenoid has gone bad .
Yes you can jump from one side of the solenoid to the other ( the large terminals only ) it's best done with a booster cables
This is not an uncommon problem and many of us keep a spare for just that reason.
The solenoid should be easily found at a local parts store.
The solenoid has to. Continuous duty as it is energized all the time the ignition is turned on.
The link below should help
https://shop.advanceautoparts.com/p/cole-hersee-continuous-duty-solenoid-relay-85a-12v-spst-24059-bp/11044623-P
https://www.colehersee.com.au/product/spst-12v-85a-continuous-duty-solenoid/
Hope this helps
Eric
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Bob, If you want to temporarily prove that the solenoid is the issue and you have no battery jumper cables, all you need is a 1/2" wrench. Remove the cable from the left side of the solenoid and install it on the right side of the solenoid. The coach should now start. If that is the case, Go to your local parts house and buy an 85 amp cole hersey solenoid. Fred
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Bob, If you want to temporarily prove that the solenoid is the issue and you have no battery jumper cables, all you need is a 1/2" wrench. Remove the cable from the left side of the solenoid and install it on the right side of the solenoid. The coach should now start. If that is the case, Go to your local parts house and buy an 85 amp cole hersey solenoid. Fred
Buy two and keep a spare….
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Thanks guys
You really helped me out
Went to the NAPA and bought a replacement
They only had one, but I ordered another one for a spare
If it fails again before we get it at least we can hobble ahead with a jumper
Bob
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Forgot to post a part number
NAPA/ Echlin ST85
$25.00 online
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I experienced the same issue exiting an off ramp in my 05 Monterey years ago. Instead of a mechanical solenoid/relay I opted for a solid state unit.
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Glad to hear you got it repaired. The other weak link in the "start mode" is the ignition switch. You may want to carry a spare. It is an early 70's chevrolet truck ignition switch. Best replacement is a "Delco Remy" ignition switch. The switches that the factory was installing were cheap. Fred
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Make sure you reinstall the diode across the small posts with the diode’s gray stripe on the same side as it was on the old solenoid, normally to the left (positive post).
Joel
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Hello larry and Heidi CONNIE AND i still have your old 2005 Monterey still alive and giving us pleasure every year Happy New year and welcome back to BAC Forum GARY AND CONNIE HARMAN THOUSAND OAKS