Is It a Problem? Temperature Guage

Technical questions and answers about the Mazda Bongo

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Bethany May

Is It a Problem? Temperature Guage

Post by Bethany May » Mon Aug 17, 2009 1:05 am

Last few times I have been out in Bingo Bongo, by about 5 miles along the road the needle on the temperature guage hase risen to top and over!! Then in the next mile or so it quickly falls back to normal and I complete my journey with no problem.

Should I worry?
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missfixit70
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Re: Is It a Problem? Temperature Guage

Post by missfixit70 » Mon Aug 17, 2009 1:46 am

Similar query here - http://www.igmaynard.co.uk/bongo/forum/ ... =3&t=34097 (link edited due to "disappearingthread syndrome") , gives you somewhere to start looking.
Bear in mind the temperature gauge is dumbed down so much it's useless (unless you've got a Mason alarm fitted?), if the engine is actually getting that hot that it's moving the gauge that far - you got problems, cos that's hot & it'll kill it very soon if it carries on. Could be the thermostat? but that seems quick to get that hot.
Hopefully it's an electrical problem that's just an instrumentation issue rather than a cooling system issue.
Have you got any other coolant system monitor fitted? Low coolant alarm, TM2?
You can't polish a turd - but you can roll it in glitter.
Aunt Trumpet

Re: Is It a Problem? Temperature Guage

Post by Aunt Trumpet » Mon Aug 17, 2009 6:11 pm

Could it possibly be a sticky thermostat?......It sounds as if its staying shut too long causing the overheat, then opening up cooling everything down. Try and check your bottom radiator hose just before it settles down again, if its cold then the thermo is shut, once its opened the same hose should be hot but not as hot as the top one. .....just a thought..... :)
Bethany May

Re: Is It a Problem? Temperature Guage

Post by Bethany May » Tue Aug 18, 2009 11:31 pm

Thanks :-)
I see there are a few people out there having similar problems. Have no other monitor fitted.
Methinks I will keep an eye on next few trips out and check as suggested.
Hoping its a glitch as I did get back from Cropredy, Fairport Convention, another 75 miles after the guage went back to normal with no further problems.
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missfixit70
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Re: Is It a Problem? Temperature Guage

Post by missfixit70 » Tue Aug 18, 2009 11:38 pm

If the engine is actually getting that hot, you run a serious risk of cooking it, I'd get it checked asap.
You can't polish a turd - but you can roll it in glitter.
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