R52 Sudden power loss and service engine light
#1
Sudden power loss and service engine light
2008 Sidewalk convertible with about 45k miles. Started it again an hour after a normal drive and it suddenly lost power, as though the supercharger were operating in reverse. By this I mean if I put my foot it in, it would immediately lose power and slow down. If I lightly accelerated, I could get up to about 25. Service Engine Soon light came on. Limped to a parking lot and shut it off. Opened the hood, found nothing amiss, closed and restarted the engine. Ran normally but light stayed on. Any thoughts?
#2
2008 Sidewalk convertible with about 45k miles. Started it again an hour after a normal drive and it suddenly lost power, as though the supercharger were operating in reverse. By this I mean if I put my foot it in, it would immediately lose power and slow down. If I lightly accelerated, I could get up to about 25. Service Engine Soon light came on. Limped to a parking lot and shut it off. Opened the hood, found nothing amiss, closed and restarted the engine. Ran normally but light stayed on. Any thoughts?
Could start I guess by checking to see if there any pending or permanent error codes logged.
#3
#5
Often, when the crank pulley fails, the engine will drop into creep mode. If you have smelled burning rubber at any time lately, this will be the problem, for sure. All of these stock crank pulleys will fail, at some point.
The supercharger blow off valve can give the same response, if it failed or the vacuum hose fell off.
There also may be other issues.
The supercharger blow off valve can give the same response, if it failed or the vacuum hose fell off.
There also may be other issues.
Last edited by ItsmeWayne; 05-15-2019 at 07:35 PM. Reason: spelling as usual!
#7
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