Problem with RPM not dropping
#1
Three Wheelin'
Thread Starter
Problem with RPM not dropping
Hi guys,
I have an annoying problem since the cold started here in Belgium. I don't know if it has something to do with th weather or not?
When i push the accelerator and let it go the RPM doesn't drop as quickly as it should?
What could this be???
Thanks!
I have an annoying problem since the cold started here in Belgium. I don't know if it has something to do with th weather or not?
When i push the accelerator and let it go the RPM doesn't drop as quickly as it should?
What could this be???
Thanks!
#2
Race Car
Here is the DIY link from Robin's site: http://p-car.com/diy/isv/
#5
Race Car
Let us know if you noticed improvements after you clean it. I do it once a year now and it's amazing how gunky and dirty gets in there.
#6
Guru
Lifetime Rennlist
Member
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Lifetime Rennlist
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Rennlist Small
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When you clean it, you really have to flush it out. Rotate it back and forth in efforts to get it to freely cycle open and closed.
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#10
Rennlist Member
I had the same issue. Cleaned out the ISV three times... still kept "sticking" at around 2,000 rpm on decel. I even lubricated all the linkages under the floorboard without success. My father-in-law came in to town (an old Trans Am series racer from the 70s). He took a can of WD40 and sprayed the crap out of the throttle cable and spring in the engine compartment ... viola, problem resolved.
#11
Three Wheelin'
Thread Starter
Problem solved!
Yesterday I took the ISV valve apart and cleaned it with brake cleaner. The inside of the ISV was dirty you couldn't imagine.
I'm pretty sure nobody cleaned this the last 10 years
Yesterday I took the ISV valve apart and cleaned it with brake cleaner. The inside of the ISV was dirty you couldn't imagine.
I'm pretty sure nobody cleaned this the last 10 years
#12
Race Car
I'm glad to hear that. You may want to check it again in a few months. You'll be surprised how quickly it gets dirty again.