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Please play nicely.  No one wants to listen/read a keyboard warriors rants....

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Author Topic: Lumpy Tickover  (Read 182 times)

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Sir Tigger QC

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Lumpy Tickover
« on: 04 June 2018, 19:19:54 »

1999 BMW 530d Touring (E39)

Every now and again the tickover gets a bit lumpy, and I chuck some injector cleaner in the tank and all seems well again for a while.  :y

This morning it was really bad to the point it stalled a couple of times in a jam on the M5.  I bought some Redex and put half the bottle in and filled the tank from about a quarter full.  I've done about 60 miles since and it is ticking over smoothly again.  :)

What's causing this?  I always fill up at Costco (121.9p) so I am wondering if their fuel is crap?  ???  Would it be worth running a tank of Shell V Power or similar through it?  :-\

Thoughts gentlemen? TIA!  :y
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dave the builder

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Re: Lumpy Tickover
« Reply #1 on: 04 June 2018, 20:43:49 »

I doubt redex did anything at that dilution
weak or failing fuel pump,blocked fuel filter ,fuel pump relay failing
if the injectors are clogged , use something strong like  BG44K for petrol engines
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Chazza12

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Re: Lumpy Tickover
« Reply #2 on: 05 June 2018, 23:13:04 »

try this used it before and its worked on the engines ive used it on. https://www.ebay.co.uk/itm/SEA-FOAM-Motor-Treatment-Diesel-Petrol-Engine-Injector-Cleaner-Fuel-Stabiliser/153015223381?epid=2165148686&hash=item23a06b0455:g:gzgAAOSwjL5ZLpVC not orderd from this person but even worked on sit on lawnmower that has been stud for 10 years.
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dave the builder

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Re: Lumpy Tickover
« Reply #3 on: 06 June 2018, 00:13:54 »

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Fuse 19

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Re: Lumpy Tickover
« Reply #4 on: 06 June 2018, 16:32:23 »

Its an injector.....

Just be careful, they are common rail and the high pressure pumps really don't like strong doses of injector cleaner.
« Last Edit: 06 June 2018, 16:44:46 by Fuse 19 »
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