Servicing, Puddles and Heat Sensor V6

Technical questions and answers about the Mazda Bongo

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Teskey144
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Servicing, Puddles and Heat Sensor V6

Post by Teskey144 » Mon May 12, 2014 11:22 am

Hello All

My first time to the Forum I hope you can help on a number of matters.

1. Servicing - here in Wiltshire I am tryng to get my beloved Bongo serviced (full) quotes coming in between £200 (autospeed), £200-£250 (Bell Hill Motors) and £250 Keith Lyle - is this the going rate?

2. Puddles/heat sensor - discovered this winter that she doesn't like puddles and stalls/loses all power either in it or just after it - which was a tad dangerous on more than one occasion. After being left for about 5-10 mins she would start again but after doing this on the 3rd occasion the heat light came on the dashboard. At first it was intermittent and then it stayed on. She also seems to misfire/is sluggish and labours between gears. Advice welcomes to try and focus garages attention and keep costs down. Service might well have to wait in favour of these works.

Thanks in anticipation.
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mikeonb4c
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Re: Servicing, Puddles and Heat Sensor

Post by mikeonb4c » Mon May 12, 2014 12:03 pm

Teskey144 wrote:Hello All

My first time to the Forum I hope you can help on a number of matters.

1. Servicing - here in Wiltshire I am tryng to get my beloved Bongo serviced (full) quotes coming in between £200 (autospeed), £200-£250 (Bell Hill Motors) and £250 Keith Lyle - is this the going rate?

2. Puddles/heat sensor - discovered this winter that she doesn't like puddles and stalls/loses all power either in it or just after it - which was a tad dangerous on more than one occasion. After being left for about 5-10 mins she would start again but after doing this on the 3rd occasion the heat light came on the dashboard. At first it was intermittent and then it stayed on. She also seems to misfire/is sluggish and labours between gears. Advice welcomes to try and focus garages attention and keep costs down. Service might well have to wait in favour of these works.

Thanks in anticipation.
'heat light' suggests diesel engine, but they don't usually mind puddles at all. Prices seem ok but what do they include? Bell Hill are well known and thought of on here. I'd opt for them and get their view on the various problems. Good luck and keep us posted.
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Re: Servicing, Puddles and Heat Sensor

Post by rita » Mon May 12, 2014 12:21 pm

It sounds like you have a petrol vehicle,if so check the Lambda wiring/distributor cap seal/plug leads/ignitor connection etc etc.

Ypu may save some money by letting your garage do the work.
Teskey144
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Re: Servicing, Puddles and Heat Sensor

Post by Teskey144 » Mon May 12, 2014 12:27 pm

Thanks, she is a petrol V6 engine and I have noticed there is exposed wiring beneath the chassis.
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Simon Jones
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Re: Servicing, Puddles and Heat Sensor V6

Post by Simon Jones » Mon May 12, 2014 1:15 pm

Some petrol models have two sensors on the exhaust: heat sensor & lambda. They will all have the lambda sensor but the heat sensor seems to be less common. My V6 doesn't have one & there is no sign that one was ever fitted

There are a number of threads on the forum regarding V6's cutting out after going thru a puddle (worth a search to find them). A few possible causes include: moisture in the dizzy cap, around the HT leads & the crank position sensor which is quite exposed at the front on the engine (seen here to the right of the pulley)

Image

The heat sensor hasn't come up in relationship to the stalling problem before, but it would make sense as it will be right in the firing line for large puddles.

V6 ignition leads do deteriorate with time, so its probably worth investing in all 7 & if you can afford it, go for genuine Mazda as some folk have had issues with the cheaper copies. For servicing & repairs, try Discount Trucks in Newbury who are more familiar with V6's than most Bongo garages.
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mikeonb4c
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Re: Servicing, Puddles and Heat Sensor

Post by mikeonb4c » Mon May 12, 2014 1:22 pm

Teskey144 wrote:Thanks, she is a petrol V6 engine and I have noticed there is exposed wiring beneath the chassis.
Apologies, I missed the v6 in the thread title. Old age and typing on smartfones!
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Re: Servicing, Puddles and Heat Sensor V6

Post by windywatson » Mon May 12, 2014 9:53 pm

Hi, I have 2 V6 bongos and have never experienced cutting out after running through water. If the vehicle is fairly new to you are you sure that the tray under the engine is present? I can imagine that without the tray in place the engine could easily be drenched with water causing misfire. I've driven in some extremely wet conditions without problems. I can recommend the investment in a new set of HT leads as they do seam to suddenly start to break down rapidly once they start to go. And a new set works wonders with resprct to smoother running.

Cheers
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Re: Servicing, Puddles and Heat Sensor V6

Post by New Forest Terrier » Tue May 13, 2014 12:09 am

Agree with the previous poster that my V6 is pretty robust on puddles. This year there have been some real lakes around. So far I have managed as the Bongo is fairly high.

Compared to a diesel the electrics are more vulnerable on a V6 with the dizzy cap behind the radiators at the front. I had a problem with this with the carbon finger inside the dizzy cap worn away resulting in a gap in damp conditions to large for the spark to jump. Result a Bongo that did not start on damp, rainy days. A new dizzy cap cured this one. Checking the under tray is present is a good point.

The heat sensor is not essential on a V6, as newer ones do not have this. It or the light bulb can be removed.
The BewilderBeast - V6 Mean Green Tintop with LPG and 321 Away Montague Conversion
Teskey144
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Re: Servicing, Puddles and Heat Sensor V6

Post by Teskey144 » Tue May 13, 2014 12:04 pm

Thanks guys.

What does a tray look like or should it be obvious?
Had her for 2 years but this been the first winter she has had a problem with water -not sure why.

Will pop out now and check.

Cheers.

T
wonkanoby
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Re: Servicing, Puddles and Heat Sensor V6

Post by wonkanoby » Tue May 13, 2014 4:45 pm

very obvious

great big lump 2 part of grp bolted to underneath

full width of motor and from about a foot in front of engine to rear of it
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Re: Servicing, Puddles and Heat Sensor V6

Post by Simon Jones » Tue May 13, 2014 6:03 pm

Here's one. It's in two parts screwed together & I've seen it before where the front section is missing & this is the bit that protects the front of the engine around the crankshaft position sensor.

http://www.ebay.co.uk/itm/mazda-bongo-u ... 2a3baf8927
Teskey144
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Re: Servicing, Puddles and Heat Sensor V6

Post by Teskey144 » Wed May 14, 2014 10:12 am

Yep got one of those.
Going to book it in to a garage in Melksham (Keith Lye) now. Fingers crossed it won't be too pricey.
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Re: Servicing, Puddles and Heat Sensor V6

Post by Luke and Debs » Sat May 17, 2014 10:17 am

hi there.

i have had bongo for 4 years now and over the last 5 month have had the same problems with puddles. problem is hard to replicate. we have tray etc. have checked dissy cap. no apparent problems. sprayed up everything with wd40 still problem. we have even had engine running and srayed water all over everything. from under and top with seats out to see if we could get electrics to arche out but nothing.

will be talking to ads next time the van is in to see what they think.

any advise would be good

cheers luke
Luke (V6 and LOVING IT)
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