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#1
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Son's 1994 E320 won't rev over 4000 rpm
This all started after my son had a front end collision and i have replaced all of the damaged parts except for the headlights and the hood and grill
no check engine light no codes where do i start to look
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Keeping 'em Running 1990 300SEL 1994 E320 1989 E300 |
#2
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Some things to check
With a front end collision, I would check vacuum advance to see if it is functioning properly. Maybe a vacuum line came loose or broke. Possibly another injury to spark advance. Otherwise, check the vacuum and see what it does at 4000 rpm. If it drops like a rock, you probably have back pressure from a plugged exhaust.
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#3
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Maybe a replaced part was the wrong one for your car? Like an ignition unit for a four cylinder rather than a 6 cylinder, that would limit the revs. Someone more knowledgeable may be able to confirm this.
Gerard |
#4
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If you are talking 4K lmit in "N" or "P", that is normal torque converter protection rpm limitation. Please specify...
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#5
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Exactly. I discovered this years ago when I revved the motor while idling in the driveway. Rpm-limited at 4K...
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
#6
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rev limit
That could be it wastesting everyting in the shop checking for leaks
i didn't know about the rev limit in park thanks for the info. i thought someone would know somithing. I still have not put it on the road yet i will post back to let everyone know
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Keeping 'em Running 1990 300SEL 1994 E320 1989 E300 |
#7
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Yeah , they have that limit for in the shop cuz they don't want you going more than 75 MPH in the garage ... |
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