skodaman
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| posted on 5/5/11 at 07:55 PM |
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Transit van rough running
Anyone got any ideas about a problem with my friends transit van? 1999 2.4 non-turbo diesel. It runs okay round town but at motorway speeds starts
to lose power and run rough till it's down to a top speed of 45 mph. It then remains like this all day but is okay again the day after. Water
temp is normal all the time. His garage reckon it's something to do with the airbox but sounds unlikely to me.
Skodaman
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theconrodkid
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| posted on 5/5/11 at 08:00 PM |
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sounds like dirty fuel filter or blocked tank vent
who cares who wins
pass the pork pies
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skodaman
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| posted on 5/5/11 at 08:03 PM |
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Yes I was thinking along those lines but it's okay cruising at around 65 for maybe 15 mins and then the rough running starts. If it was blocked
fuel supply u'd think it would never go fast (relatively].
Skodaman
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dilley
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| posted on 5/5/11 at 08:05 PM |
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2.5 di, check fuel filter and housing, mechanical lift pump on side of block, block off the egr valve to get more power!
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r1_pete
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| posted on 5/5/11 at 08:07 PM |
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I'd agree with dirty fuel filter, my L200 did similar, a new filter cured it, I get a new one fitted at each service now....
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skodaman
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| posted on 5/5/11 at 08:09 PM |
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Thanks guys I'll check it out.
Skodaman
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ASH3
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| posted on 5/5/11 at 08:23 PM |
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Fuel filter pipes make sure the unions on the pipes are tight. adjust the air flap so it opens fully on half to full throttle also fuel lift pumps go
weak should be raplaced at least twice in the vehicles life, tappets and has it had the leake off pipe mod as in if its still to the back injector
then its not had it can make a world of differance if you can cure the problem by knocking off an injector then thats the problem if you need the mod
details shout me best of fun..
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Danozeman
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| posted on 5/5/11 at 09:50 PM |
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Is it misfiring?? they have a mod where you move the leak off return pipe from number 4 to number 1 injector as it collects air and wont get rid of
it as number 4 is lower than the rest. Normally a good thrash will clear it.
Valve clearances out are common as muck. Diaphragm and throttle pin in the injector pump wear aswell and give lack of power. Easy change.
Id try the first 2 first.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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motorcycle_mayhem
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| posted on 6/5/11 at 06:13 AM |
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When it's hot and running rough, slacken off each injector union in turn. You'll need a 14mm and 17mm spanner, the 14mm to hold the
injector (so nothing shears) and a 17mm to slacken the union. Put a towel around it (mind the fan), wear goggles, or if on the layby of a motorway
just look away while the diesel spurts. No difference? it's air or a faulty injector.
Leak off modification advice is sound. All vans that went in via the normal service route had it done. My 1999 White Arrow shed though, still
hadn't at 160K when I acquired it 2 years ago.
I'm no expert, it's just that I've used (and still do) Mk5 smiley's to pull the race car over the country. Not this year
though, no job, dwindling savings and frightening fuel costs....
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