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#1
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1999 E430 issue at ~62mph
So, here is the setup:
I am driving my car on the freeway in 5th gear at around 60 mph. I slowly press the accellerator. Here is what happens: The car slowly accellerates up to about 63mph, then a different tone is heard and there is a vibration which sounds like it comes from the exhaust headers, then the car drops speed and rpm down to about 61mph and re-accellerates. What the shop says: This is normal and caused by the dual intake plenum. What I say: I have never felt this before and sounds like a new thing to me. I am able to reproduce for them and they say that all of these car are this way. Does this sound right to you? Anything I should ask them to do? Thanks for you help, Chris |
#2
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what caused the drop the in speed? did you let up on gas or the car won't accelerate anymore?
try another shop or dealer for diagnosis. |
#3
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The car does it on it's own with constant throttle application. Interesting that teh dealer says this is normal, but no one has responded to me....
Thanks, Chris |
#4
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if the intake plenum is the problem try this since the plenum are usually rpm activated keep car in a lower gear duplicate exact rpm where stumble occurs in fifth and see if it is duplicated in third.
how many miles on the car? is car under warranty? try a different E430 on a test drive |
#5
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60k miles on the car
Not under warranty They are telling me this issue is on all E430s. I guess folks don't have the same experience? I didn't notice it until recently...actually while still under warranty. Chris |
#6
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Mine is doing that now.. But my CEL is on. I know I need a MAS. Maybe your is going bad..
__________________
Peter L. House 1998 Sport E430 Azure Blue 110,000k Miles 1987 Oldsmobile Cutlass Salon V8 Bucket Seats Factory Moon Roof |
#7
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Tested mine ('99 E430) today, no hesitation or anything abnormal, accelerated smoothly.
Peter |
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