Temperature gauge issues

RV and bus conversion info since 1996.

Share Your Feedback

PRINT PAGE

RV Classifieds

		1962 Gm 4106 - $35,000
		1999 Sunnybrook 30 RLFS Lite Aluminum Superstructure - $13,500
		1977 Custom Built 2004 Conversion - $35,975
		1972 Prevost Champion - $95,000
		RV'ers Financial News - FREE Subscription
		VIEW ALL
		Search RV Classifieds
		Classifieds Policies
		Benefits for Dealers
		Sell Your RV
		Dealer Signup

Useful Links

RV Community

		Discussion Groups
		RV Articles
		RV FAQs
		RV Classified Ads
		Virtual RV Park
		Shop at our Store
		RV Lifestyle Books
		Rate Your RV
		AllThingsRV.com
		MyRVGuide.com
		RVMechanic.com
		Advertise With Us

BECOME A MEMBER

RV Resources

		RV Storage in New Mexico
		Free Car Buying Advice
		Visit Rio Rancho, NM for Winter
		RV Dealers
		RV Manufacturers
		RV Rentals
		RV Glossary
		RV Types
		RV Ratings

Misc Sponsors

		Film in New Mexico
		Sculptures for your RV

Temperature gauge issues

Home > Discussion Forum > Mechanic's Corner (general)

email Joe

reply to message

post new message

search forums

hidden layer

ATTENTION: All Postings that advertise items for sale will be deleted from the Discussion Forum. You may post sale items for free in the Classifieds section. Sign up now.

All Messages in Thread	Author	Date
Temperature gauge issues	Joe	8-26-09
1991 Geo. Boy motorhome - 454 chev engine. Problem is my temp. gauge doesn't move. So far, I have replaced the thermostat & the temperature sensor. The damn gauge still doesn't move. My first question : Is there a second sensor unit on my motor because the m.home is equipped with a high temp. sensor that turns on my fans to cool the motor. My second question : Can I take out the sensor on the block & install a Manual temperature gauge? Help....I am planning to take a vacation in a couple of weeks. Thanks. This site helped me with a different issue a couple of years back - same m.home (different hmmmm problem) You guys are great. Joe S.
Re: temperature gauge issues	Phil Feinstein	8-27-09
In a rig of your vintage I would expect 2 sensors for water temp: one for the gauge and one for the EFI set up. If you have a feedback carb you may or may not have a second sensor. It's very easy to tell them apart. The gauge sender has only one wire and the EFI sensor has 2 or 3 (depending on what the EFI needs). There are a couple of reasons why the temp gauge wouldn't work. The way it works is that the sender completes a connection to ground, so resistance to ground is was the gauge is reading. If the sender is brand new, you can test it using an ohmmeter (resistance goes down as the engine get hotter; you can measure at the sender and any bare metal). If the sender is good, you only have 2 places to check for a problem: the wire from the sender and the gauge itself. I've run into exactly ONE instance when the problem was the plastic circuit board connecting the gauge, but that's a possibility as well. What part of this will entail is removing the gauge cluster from the dash, so be prepared. A wiring diagram helps a lot, but if you can see the wires you're tracing you can do without. Hope that helps!

Call for pricing