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BMC (Bluebird Motor Coach Unique Issues) If you have a unique issue with your BMC coach and it can't be answered in one of the other forums here, then this is where you can list it.....List your BMC Parts here too.

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  #1  
Old 2 Weeks Ago
bullardbill's Avatar
bullardbill bullardbill is offline
Jolene’s Mechanic
 
Join Date: Jul 2021
Location: Johnson City/Limestone
Posts: 87
Default 10k Powertech oil pressure switch Hack

This pressure switch has been a pain for a couple of years. Worked great most of the time, but would randomly shut the generator down. Have pressure gage running off another sensor, so knew oil pressure was good. Changed the fan belt and was running the generator at the nest, the switch finally decided to lay down. Looked online for a replacement switch. 77 bucks plus 20 bucks shipping. "For a pressure switch" Get real. Looked around the shop for a alternative for this fix. This is what i came up with. May have 20 bucks in the whole fix. See pictures for part numbers.
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Bill and Christina Sams
Johnson City, TN
Limestone, TN (For Sale) (Sold)
1995 BMC 37 (Jolene) 8.3 Cummins Turbo Diesel
2021 Jeep Cherokee (Trail Hawk) Toad
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Old 2 Weeks Ago
wandermore wandermore is offline
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Nice work, Bill! Good idea heat shrinking the terminals and thank you for posting the part numbers for those that will find this in the future.
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Jim Reynolds
Winchester, Tennessee
'99 LXi
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Old 2 Weeks Ago
Dave Stokes Dave Stokes is offline
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Location: Sandy Springs
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Good timing. I may need this now. I was running the genset all day and then it crapped out. The fan stopped working for some reason (12v auto fan) and it overheated. Waited for everything to cool off and now it will only run with the switch held in the start position. I am thinking that switch may be stuck.
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David & Nicole Stokes and Myla
Atlanta, Georgia
'98 LXi 43'
'00 LXi 43' SS
'89 WB 40'
2022 Jeep Gladiator Diesel

229-834-8677
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  #4  
Old 2 Weeks Ago
bullardbill's Avatar
bullardbill bullardbill is offline
Jolene’s Mechanic
 
Join Date: Jul 2021
Location: Johnson City/Limestone
Posts: 87
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Try a jumper wire on the switch, Mine would run if i held the switch.
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Bill and Christina Sams
Johnson City, TN
Limestone, TN (For Sale) (Sold)
1995 BMC 37 (Jolene) 8.3 Cummins Turbo Diesel
2021 Jeep Cherokee (Trail Hawk) Toad
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  #5  
Old 2 Weeks Ago
wandermore wandermore is offline
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Join Date: Jan 2021
Location: Winchester
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Quote:
Originally Posted by Dave Stokes View Post
Good timing. I may need this now. I was running the genset all day and then it crapped out. The fan stopped working for some reason (12v auto fan) and it overheated. Waited for everything to cool off and now it will only run with the switch held in the start position. I am thinking that switch may be stuck.
So the new pressure sender fixed your other problem? You tried disconnecting the temp switch already, right?
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Jim Reynolds
Winchester, Tennessee
'99 LXi
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