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#1
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Rough Idle in gear
I have a 1988 300TE with 48,000 miles on it. I have replaced the plugs, plug wires and injectors and still have a rough idle when the car is warmed up and in gear. Anyone have a solution?
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#2
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I was about to suggest checking the motor mounts but you have pretty low mileage. I thought that 65K on my '91 was low!
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#3
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Two thing I can suggest:
- Clean the throttle body bore. - Check the egr valve to make sure the poppet is perfectly seated and no exhaust gases are getting by at idle.
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95 E320 Cabriolet, 159K |
#4
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Motor mounts,Motor mounts,Motor mounts must be the mounts
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MB STARS Master Guild Technician,17 years MB tech 14 years independent shop owner |
#5
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I had moisture in my fuel tank on my 89 300SEL. I used STP gas dry and it cleaned up my problem within a half of a tank. I tried various fixes for my idle, but nothing seemed to help. So I put everything back to factory spec and ran the STP and that fixed my problem.
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Mike 90 300D 511k 95 C280 133k 14 BMW 528i |
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