Water temp gauge and heater

Technical questions and answers about the Mazda Bongo

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Aitken1
Junior Bongonaut
Posts: 11
Joined: Mon Dec 11, 2017 6:31 pm

Water temp gauge and heater

Post by Aitken1 » Mon Jan 08, 2018 6:27 pm

I’ve noticed that my water temp gauge never really moves albeit very slightly and seems to be stuck in very low. Also the heat even on full never really gets very hot, though I don’t know if I’m just comparing to a newer car.
Just wanted to know if there is any link between water temp being low and heating and if I have a big problem looming!!
Thank you
S
Bob
Supreme Being
Posts: 15366
Joined: Wed Oct 17, 2007 12:54 pm
Location: North Somerset

Re: Water temp gauge and heater

Post by Bob » Mon Jan 08, 2018 7:00 pm

Possibly someone has removed the themostat to hide a problem. :?
Take a torch, toilet roll, and tea bags.

https://m.youtube.com/watch?v=hcF9JSxkUSE
Sven
Bongonaut
Posts: 43
Joined: Mon Sep 11, 2017 8:54 pm
Location: Norwich

Re: Water temp gauge and heater

Post by Sven » Mon Jan 08, 2018 9:46 pm

I had the same problem on mine when i first got it. Took it back to Andy at Andys Imports where i got it from & he said the thermostat was probably stuck open, which was quite common. He changed it & now it heats up really quick - within about 3 miles. Also the temp guage is rock solid at just under halfway & the heater works really well.
So I’d suggest checking and probably changing the thermostat on yours.
cutlass
Bongolier
Posts: 167
Joined: Fri Nov 24, 2017 9:56 am
Location: russia

Re: Water temp gauge and heater

Post by cutlass » Mon Jan 08, 2018 10:19 pm

connect at ground wire from temp sensor on head....what you look?
Markas
Bongolier
Posts: 233
Joined: Sun Jun 11, 2017 3:53 pm
Location: Deux-Sèvres, France

Re: Water temp gauge and heater

Post by Markas » Tue Jan 09, 2018 10:18 am

Aitken1 wrote: Mon Jan 08, 2018 6:27 pm I’ve noticed that my water temp gauge never really moves albeit very slightly and seems to be stuck in very low. Also the heat even on full never really gets very hot, though I don’t know if I’m just comparing to a newer car.
Just wanted to know if there is any link between water temp being low and heating and if I have a big problem looming!!
Thank you
S
Is it a 2.0 petrol Bongo?
I bought mine fully aware of a problem in that department and budgeted accordingly. When I put it into a nearby specialist to have the work done he commented that he'd seen several 2.0 vehicles recently with a stuck thermostat, which was indeed the case with mine. Not expensive :)
Mark
1999 Bongo 2.0L, Northstar Outback rear conversion
Flanners
Bongolier
Posts: 426
Joined: Tue Oct 31, 2017 4:11 pm

Re: Water temp gauge and heater

Post by Flanners » Tue Jan 09, 2018 5:01 pm

Hate to imagine what the fuel consumption has been like with the stat stuck open :shock:

Can cause bore wash as well I have heard, so I would change it asap.
2002 2.0 Aero with Outback Conversion and Roof Top Tent
Aitken1
Junior Bongonaut
Posts: 11
Joined: Mon Dec 11, 2017 6:31 pm

Re: Water temp gauge and heater

Post by Aitken1 » Tue Jan 09, 2018 5:48 pm

Thanks it’s a 2.5 diesel and yes the fuel economy is awful and cold in the cabin!! Have ordered new thermostat and water pump as was recommended to just do both together. Do you think a standard garage would be able to do this or best to take to a Mazda bongo specialist garage..unfortunately the nearest one that knows bongos is quite far from me and don’t don’t want to risk a long drive..
Bob
Supreme Being
Posts: 15366
Joined: Wed Oct 17, 2007 12:54 pm
Location: North Somerset

Re: Water temp gauge and heater

Post by Bob » Tue Jan 09, 2018 6:15 pm

definitely use a Bongo Friendly garage for work on the cooling system.

It will be worth paying to have the Bongo recovered to the garage, flat bed truck if necessary, as there are far too many horror stories of garages who refuse to listen when it comes to the bleed process.
Take a torch, toilet roll, and tea bags.

https://m.youtube.com/watch?v=hcF9JSxkUSE
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