SPEED LIMITED TO 88 M/H
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suspension system error. this limits the speed
There is no error or check engine indication.
I would still have it scanned (body code scanner) obd most likely will not pick it up, the suspension system is what causes the limit as a safety catch.
is the suspension stock? has anything ever been changed?
just google the issue, it has come up many times it's related to MRC magnetic ride control
strutaeng
Full Access Member
My buddy has a 17 Silverado. I was talking to him and said they went hunting and his wife got bit by a rattlesnake. He had to drive her to the ER and found out his truck has a speed limiter set at like 98 MPH...
Luckily, they got there quickly and they gave her some sort of shot.
Luckily, they got there quickly and they gave her some sort of shot.
that's different. the 88 limit is a safety limit when there is a suspension fault, they only started doing that on the k2'xx. It has came up several times
most modern gm's have a speed limiter anywhere from 98-115, unless you have a corvette, etc
people do not realize it until they try to go at or above that speed
88 is not a factory limit, it could be set for like teen driver, but you would know that you set it there.
people do not realize it until they try to go at or above that speed
88 is not a factory limit, it could be set for like teen driver, but you would know that you set it there.
I googled the issue and MRC, and I couldn't find out if speed limitation is related to MRC failure.
it is, either it needs to be recalibrated or there is a active code, this type of code will not cause a check engine light, but may come up as a message in the dic, such as "service suspension system" or if you replaced the shocks with aftermarket and did not use a delete kit or the delete kit has failed.
again this has come up a number of times and it is directly related to the suspension, it could always be something else no one has reported otherwise in years
apparently it can happen on the gmt900's also per a couple youtube video's, also happens on the camaro's and caddy cts, sierra/silverado pickups
Thanks Doubeleive,
You are correct this problem has started after replacing the shocks, which is more likely it.
you can use resistors which should resolve the problem
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Did you replace the Magneride shocks with GM OEM Magneride (or aftermarket active shocks) or aftermarket passive shocks?
Do you have a quality bi-directional scanner? That would help pinpoint the source of the issue.
Were replaced with aftermarket shock, but believe it or not, the problem has disappeared by its self without reprogramming. Now the vehicle drives smoothly and to normal speed.
if it comes back then check those resistors, unless they are built in then it could be a faulty shock (intermittent)
petethepug
Michael
How do the clowns that offer all the money saving products of deleting z95 or z55 manage to leave out all these known issues when they’re advertised?
Almost a third of the posts in some of these forums is a long series of questions that ultimately comes back to …. “yea, I did add the uguha duguh MagRide delete kit, what does that have to do with it?’
Almost a third of the posts in some of these forums is a long series of questions that ultimately comes back to …. “yea, I did add the uguha duguh MagRide delete kit, what does that have to do with it?’
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