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Old 12-27-2009, 08:24 PM   #1 (permalink)
Join Date: Dec 2009
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ride777 is on a distinguished road
Unhappy Sluggish 1994 520i

My automatic 1994 520i 2.0 runs like its towing boat.

Please help my BMW has very slow acceleration under 3000 revs.

Engine dosnt blow smoke , no knocking or unusual noises. Not sure how long its been sluggish as i only brought it 1 week ago.
Idle is very smooth tho and engine isn't difficult to start, slight hesitation when throttle is pushed then it very slowly gets up in revs ( makes it to red line happily, just very slowly) revs freely (nicely) when in neutral.I had it in at the garage and they changed plugs, looked at exhaust, and timing , they had no idea, cost me 250 NZ dollars .
I don't think they hooked it up to dialysis.
Ive changed the fuel filter ( it was the original so i'm guessing the maintenance probably hasn't been kept up to date. When i start it after it has sat over night it runs perfectly but only for the first 20 seconds max ( or 300 meters of driving then back to its sluggish self.

Keen to sort this issue. any help would be greatly appreciated...
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