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Old 10-13-2018, 11:29 AM   #1
Join Date: Sep 2018
Location: Alabama
Posts: 91
1987 Monaco Executive Engine Quit

3208 Cat diesel pusher.
Cranked and building air pressure and it just shut off.
Now no power to ignition/dash
Breakers checked.....good
Fuses checked.....good
Power to house lights, radio, steps.... working
Relays found.....good
Solenoid in dash.....checked

Can turn engine over w/no start from rear

Mechanic needs schematic on engine that we do not have to try and locate if any missed relays on ignition.....no lock on that yet.

Any suggestions
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Old 10-13-2018, 05:39 PM   #2
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Ok, you don't have ignition. But you do have fuel pumps. Are they powered? Can you hear/feel them run?
2006 Monaco Safari Cheetah 40PMT
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Old 10-13-2018, 05:56 PM   #3
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I tried to help with a similar issue on a 97 Beaver with Cat engine , that engine like mine ( that I found out after a muli day search ) has an in-line 20 amp fuse for battery power to the engine ECM.
If that fuse is blown you'll get your exact problem. Water proof fuse holder usually within 18" of the chassis battery positive post.

Or look for a flat 4 wire multiple connector within 18" of the ECM, this is the battery power and wiring grounds for the ECM ;( 2 power / 2 ground ) both power wires come from the same in line fuse. If you have no power at that connector , continue your search for the inline fuse holder.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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Old 10-13-2018, 09:12 PM   #4
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Ok thanks will try again tomorrow driving me crazy not a far trip though Scott
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Old 12-25-2018, 11:49 AM   #5
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Fuel solenoid

There should be a fuel solenoid on the injection pump that shuts of fuel. I am running a cummins and I'm not sure what the Cats use but there should be one there.
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Old 12-25-2018, 11:58 AM   #6
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The fuel shut off solenoid on a 3208 is up on top of the injection pump, in the valley between the cylinder banks.

See if power is getting to it while cranking.
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Old 01-13-2019, 09:51 AM   #7
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Curious to learn what the issue was.
Sold the Winnebago : Motorhomeless :-(
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Old 01-15-2019, 06:17 PM   #8
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Not sure yet got cold and I quit
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Old 02-10-2019, 07:52 AM   #9
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Got it going was the fuel cut off solenoid thanks to everyone
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engine, monaco

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