JesseH
05-30-2021, 07:54 PM
I tried some searching about idle issues and brake issues but I could not find anything covering both issues. Sorry if I am missing an enlightening thread that has been posted already.
The brakes gave out a few days ago and pumping them up builds no real stopping power. It will drag a bit but the e brake is the main way to stop the van. (Just limped it home to know this)
I was sitting with the van running and I was pumping the brakes and watching the brake fluid level and nothing seemed to be dropping at all even after a lot of pumping, But that is when I noticed that the van would start to stumble and the idle drops from like 800 to about 250-300 when I pumped a lot.
Would a bad master cylinder do anything to the idle speed?
I would have thought some leaking fluid might be getting into a vacuum line to mess something up but... not see fluid loss makes me second guess this idea.
I tried to do a solo bleed on it today and nothing changed. I plan on doing a proper bleed with a buddy soon.
Any speculation why pumping the brakes affects idle speed?
The brakes gave out a few days ago and pumping them up builds no real stopping power. It will drag a bit but the e brake is the main way to stop the van. (Just limped it home to know this)
I was sitting with the van running and I was pumping the brakes and watching the brake fluid level and nothing seemed to be dropping at all even after a lot of pumping, But that is when I noticed that the van would start to stumble and the idle drops from like 800 to about 250-300 when I pumped a lot.
Would a bad master cylinder do anything to the idle speed?
I would have thought some leaking fluid might be getting into a vacuum line to mess something up but... not see fluid loss makes me second guess this idea.
I tried to do a solo bleed on it today and nothing changed. I plan on doing a proper bleed with a buddy soon.
Any speculation why pumping the brakes affects idle speed?