I am experiencing a problem with my 2003 Monaco Windsor with diesel engine. For no reason the oil pressure gauge started reading almost off the wall as DW and I started a trip this a.m. I pulled into the local Camping World and told them what was going on(Cat engine). They looked at it and said I needed a new oil temp sensor. After an hr and 1/2 I paid and left the shop. We were on our way to Florida and I had driven about 10 miles in the Atl traffic when the gauge again spiked. By the time I exited and got back to CW they had closed for the holiday. I drove on home, 5 miles away. When I got home I noticed that even though I had turned off the engine, the OPG was still spiked...in addition all my other gauges were giving readings even though the ignition was off and the key removed. I am not an engine expert so I am turning to you guys. Anyone have any ideas or heard of this before. I contacted Monaco and was told in the beginning that it was probably a bad sensor. Now what????? Thanks for any and all feedback.
Certainly sounds like a chassis/dash wiring problem. Contact Monaco with a complete list of your symptoms. With a wiring diagram determine all the components that are "acting up" have in common.
I had a similar problem in a Chevy pick-up. Turns out I had kicked a ground wire loose under the dash. Made a really good "kick resistant" connection and my problems went away.
Your luck may vary...
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Wade & Kathy 2007 F-150 XLT - 2008 Rockwood 8280SS It's not the rig, it's where you go and who you go there with.
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Tech1 wrote: I am experiencing a problem with my 2003 Monaco Windsor with diesel engine. For no reason the oil pressure gauge started reading almost off the wall as DW and I started a trip this a.m. I pulled into the local Camping World and told them what was going on(Cat engine). They looked at it and said I needed a new oil temp sensor. After an hr and 1/2 I paid and left the shop. We were on our way to Florida and I had driven about 10 miles in the Atl traffic when the gauge again spiked. By the time I exited and got back to CW they had closed for the holiday. I drove on home, 5 miles away. When I got home I noticed that even though I had turned off the engine, the OPG was still spiked...in addition all my other gauges were giving readings even though the ignition was off and the key removed. I am not an engine expert so I am turning to you guys. Anyone have any ideas or heard of this before. I contacted Monaco and was told in the beginning that it was probably a bad sensor. Now what????? Thanks for any and all feedback.
Since you did not mention a tachometer nor a speedometer problem. Pull the top cover off your dash check all the nuts on your instruments. Camping world does not carry the proper oil pressure and/or oil temp sending unit for a Monaco. If you can get your old sending unit back. re-install it. It has a built in resistance. I have found no after market unit that will replace Monaco's sending unit. Put the old one back on. Then check the voltage. The (red +) and white (wire -) Pins 1 and 2 on your speedometer. with the engine running about 1500 rpm's.
Sounds like spike voltage (Loose wire nut) or too high alternator output. Should be 13vdc or less
Monaco has had a problem with oil pressure gages and sending unit for the last 4-5 years.
I have the schematics if you need it I can email
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