"Starting ok.... then losing power" It's come back

Technical questions and answers about the Mazda Bongo

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boyfrombrasil
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"Starting ok.... then losing power" It's come back

Post by boyfrombrasil » Mon Nov 26, 2007 10:56 am

Bongo started ok this morning. Got 30 yards then the engine slowly cut out....

5 minutes of turning over the engine got intermittent starting results but no power. Just like the thing was running out of fuel again. Exactly what happened last time... http://www.igmaynard.co.uk/bongo/forum/ ... hp?t=16085

Finally started up and drove a further 50 yards then cut out again. Then started again eventually and drove a further 100 yards perfectly until dying again.

5 minutes later started again and drove 15 miles to work without missing a beat. Hmmmmm......

Have cleaned the banjo filter and changed fuel filter 2 weeks ago and have done over 500 miles since including starting in freezing conditions several times. Temp outside today about 7 degrees C.

Where to next?
Bongo-ing. The beginning of life as Susie and I now know it...
bigdaddycain
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Post by bigdaddycain » Mon Nov 26, 2007 11:19 am

I wonder if there is air in the fuel lines?

I had a similar problem once with my car,but it was worse, insofar that it wouldn't even start.

I'd inadvertantly ran it dry of diesel ( gauge had packed up,didn't drop below a quarter) After re-fuelling, it just would not start.

When the r.a.c. came out, i cranked the engine, whilst the mechanic loosened each injector,till fuel sprayed out,then re-tightened it.

I paused for a few minutes between each injector bleed, as the starter motor was getting hot.

It would appear that the last injector that was bled, was the cause of the problem.

Had no problems since. If you decide to do this bfb,its a two man job.
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roosteruk

Post by roosteruk » Mon Nov 26, 2007 11:37 am

bigdaddycain wrote:
It would appear that the last injector that was bled, was the cause of the problem.
Maybe he should have started that end first?

:lol: :lol:
bigdaddycain
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Post by bigdaddycain » Mon Nov 26, 2007 11:47 am

:lol: :lol: :lol: Sod's law mate! :wink:
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cheffy34
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Re: "Starting ok.... then losing power" It's come

Post by cheffy34 » Mon Nov 26, 2007 12:06 pm

boyfrombrasil wrote:Bongo started ok this morning. Got 30 yards then the engine slowly cut out....

5 minutes of turning over the engine got intermittent starting results but no power. Just like the thing was running out of fuel again. Exactly what happened last time... http://www.igmaynard.co.uk/bongo/forum/ ... hp?t=16085

Finally started up and drove a further 50 yards then cut out again. Then started again eventually and drove a further 100 yards perfectly until dying again.

5 minutes later started again and drove 15 miles to work without missing a beat. Hmmmmm......

Have cleaned the banjo filter and changed fuel filter 2 weeks ago and have done over 500 miles since including starting in freezing conditions several times. Temp outside today about 7 degrees C.

Where to next?
had simaler prob with a crap vauxhaul before turned out to be the distributer, not sayin it would be tho
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Re: "Starting ok.... then losing power" It's come

Post by bigdaddycain » Mon Nov 26, 2007 12:11 pm

[/quote]
had simaler prob with a crap vauxhaul [/quote]

Why does that NOT suprise me?
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Veg_Ian

Post by Veg_Ian » Mon Nov 26, 2007 12:27 pm

turned out to be the distributer, not sayin it would be tho
not on a diesel errm no .......

It's going to be fuel or air. First step would be to check fuel at the injectors as BDC suggests. Not sure why a 2-man job though. Also check all pipes that carry fuel between the pump and injectors for splits/holes. Also does your fuel filter have a push button gizmo on the top? These can fail with a split diaphragm etc letting in air - worth a check. If fuel looks ok then check the air lines for blockages.
kawasaki kid
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Post by kawasaki kid » Mon Nov 26, 2007 6:15 pm

The job BDC describes is normally a two man job due to most car makers putting the engine under the bonnet and not in between the seats. :)
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boyfrombrasil
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Post by boyfrombrasil » Tue Nov 27, 2007 11:46 am

Haven't done anything yet.... Working until Friday :(

But yesterday eve it started no problem and drove home again without missing a beat.

This morning was perfect again.... :?
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bigdaddycain
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Post by bigdaddycain » Tue Nov 27, 2007 12:02 pm

These are the worst kind of problems in my opinion bfb...The intermittent ones,that simply will not rear their ugly heads when under scrutiny from a mechanic...

You can bet your cuddly bear uniform that if you phoned the r.a.c. out, by the time they arrived the bongo would run perfectly,and make you out a liar...
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roosteruk

Post by roosteruk » Tue Nov 27, 2007 12:38 pm

I would plum for a full service. Also see if your garage can inspect the inside of your fuel tank.
I am wondering if the problems are caused by sludge,muck,sh**e in the system when you ran the fuel so low.
There could be crap in the sediment bowls and if you corner a little quicker than normal, or go over a bump, it could dislodge and be passed back into the system.
I am also wondering if your driveway is on a slope, or where you park your Bongo is, it could be picking up crap that way?
Just a thought.

Karl
smartmonkey

Post by smartmonkey » Tue Nov 27, 2007 2:08 pm

Could be a sticky fuel cut of solenoid.
Highland Bongo Audrey

Post by Highland Bongo Audrey » Wed Nov 28, 2007 11:38 am

Hi

Bob my husband has been having the same problem with his and last week got so fed up he put the bongo into mazda in Inverness. His problem started just after changing the fuel filter. It turns out that the filter was contaminated and now that it has been changed again is running fine. He has also been advised to ad an additive and use either Bp or shell fuel as the additive in them help keep the injectors clean. I hope this helps.

Audrey
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boyfrombrasil
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Post by boyfrombrasil » Wed Nov 28, 2007 7:23 pm

Hi Karl,

Yes, I park the Bongo on a right side to left down slope each evening. About a 6 inch drop. But last night parked it the other way round (left to right drop) and still had problems (possibly worse) again this morning (8.30 am).... #-o

But when it eventually ran right I got the 15 miles to work with no problems. Acceleration etc were ok.

I tried running the van in the (flat) works car park about 5pm this evening (I'm still at work now) and Bongo started and ran for a few minutes perfectly without me touching the accelerator. I could hear a relay clicking on and off though (temp outside about 10 celcius) :-k

Interestingly though, I've had the problem about 5 times now over the last month and it has only ever happened to me after parking the Bongo overnight outside my house on the slope I mentioned earlier..... :-k

And to Audrey....

I run a veg mix and therefore haven't put injector cleaner into the fuel tank since I bought the Bongo back in May. Not sure if I should (or can) because of the veg oil.....? Can anyone tell me any reason why I shouldn't as I actually have a dozen bottles of the stuff I got free from a Wurth sales rep?

For the other bits of advice I won't have the time to do anything else until Friday......
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Post by brorabongo » Wed Nov 28, 2007 8:35 pm

I'm not sure I should of, but I did stuck "Miller's diesel power plus" in whilst using veg oil. No problems so far. 8-[ *touches wood*
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