Strange Temp Guage Readings

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
User avatar
tonnee
Bongolier
Posts: 165
Joined: Thu Jul 14, 2011 4:00 pm
Location: Bolton, Lancs
Contact:

Strange Temp Guage Readings

Post by tonnee » Thu Oct 13, 2011 10:29 am

Hi All

Had my Bongo in at Jap Direct about a month ago to replace the rear heater matrix, several hoses and had the thermostat replaced before that.

All has been well until the last couple of days and I have noticed the temp guage doesnt move for about 15 mins while driving, then it goes up to "11 o clcok" and back down to zero every few mins?

I suspect there still maybe some air trapped in the cooling system but will be calling Adrian back up this week to get him to take a look over it.

I have an additional digital temp guage fitted and this ready as it alwasy has done and shows no overheating.

Just wandered if anyone else had come across this before?

Cheers

Tony
1995 Bongo Auto Free Top 4WD

http://www.justgiving.com/tony-sahara
jaylee
Supreme Being
Posts: 5500
Joined: Wed Mar 05, 2008 4:56 pm
Location: AQVAE SVLIS

Re: Strange Temp Guage Readings

Post by jaylee » Thu Oct 13, 2011 10:35 am

Could just be an electrical fault on the gauge circuit itself..?

Where do you have the "additional digital temp gauge" sensor fitted.?
Cheaper by comparison to a race horse...
Image
rita
Supreme Being
Posts: 3284
Joined: Tue Sep 15, 2009 7:11 pm

Re: Strange Temp Guage Readings

Post by rita » Thu Oct 13, 2011 10:38 am

Hi,
It sounds like a faulty connection on the transmitter

Cheers.
User avatar
tonnee
Bongolier
Posts: 165
Joined: Thu Jul 14, 2011 4:00 pm
Location: Bolton, Lancs
Contact:

Re: Strange Temp Guage Readings

Post by tonnee » Thu Oct 13, 2011 10:41 am

Digi temp sensor is strapped to the first metal pipe from the top hose, and has always read between 56 and 68 degrees and still shows this now?

Where is the normal temp sensor located? i'll give the connection a clean up and see if it helps
1995 Bongo Auto Free Top 4WD

http://www.justgiving.com/tony-sahara
rita
Supreme Being
Posts: 3284
Joined: Tue Sep 15, 2009 7:11 pm

Re: Strange Temp Guage Readings

Post by rita » Thu Oct 13, 2011 10:54 am

User avatar
tonnee
Bongolier
Posts: 165
Joined: Thu Jul 14, 2011 4:00 pm
Location: Bolton, Lancs
Contact:

Re: Strange Temp Guage Readings

Post by tonnee » Thu Oct 13, 2011 10:58 am

cheers I shall take a look tonight and let you know how it goes :-)
1995 Bongo Auto Free Top 4WD

http://www.justgiving.com/tony-sahara
teenmal
Supreme Being
Posts: 3656
Joined: Thu Mar 27, 2008 6:08 pm
Location: north lanarkshire

Re: Strange Temp Guage Readings

Post by teenmal » Thu Oct 13, 2011 11:55 am

Hi tonnee,

Did you ever get to the Root of this problem the last lime it happened??

http://www.igmaynard.co.uk/bongo/forum/ ... =3&t=50524
User avatar
tonnee
Bongolier
Posts: 165
Joined: Thu Jul 14, 2011 4:00 pm
Location: Bolton, Lancs
Contact:

Re: Strange Temp Guage Readings

Post by tonnee » Thu Oct 13, 2011 11:59 am

I certainly did, the previous owner had cut the thermostat centre out, but all has been fine since Jap direct did a complete overall of the cooling system

My bongo now has a new Rad, new thermostat, new rear Matrix, new hoses, new coolant and is running sweet as a nut.

Sure it will be something and nothing...famous last words :|
1995 Bongo Auto Free Top 4WD

http://www.justgiving.com/tony-sahara
User avatar
missfixit70
Supreme Being
Posts: 12431
Joined: Fri Jun 01, 2007 3:53 pm
Location: weymouth

Re: Strange Temp Guage Readings

Post by missfixit70 » Thu Oct 13, 2011 12:21 pm

If it's going up & down almost instantly, it more than likely is not a coolant issue, but as has been said - is an electrical issue, especially if t'other gauge is reading normally (although 56-68 degrees is low, should be up in the 80's for a properly runnning system, the position of you add on sensor is probably not the best though, it'll be subject to cooling effects of airflow ), recent identical issue here - http://www.igmaynard.co.uk/bongo/forum/ ... or#p523529
You can't polish a turd - but you can roll it in glitter.
Post Reply

Return to “Techie Stuff”