Want to change vacuum hoses. Need advice...
After operating perfectly for about 3 weeks, my '90 325is had another fit with searching idle that stalls out, stumbling at speed. Gives 1222 code. (The code had cleared before.)
Cannot see any obvious bad vacuum hoses or connections, so I think maybe I should just replace all vacuum hoses, for starters. Can I get hose stock from AutoZone or some place? Or do I need to buy BMW parts?
If it turns out to be the intake manifold gasket, is this a DIY for someone with moderate skills and experience?
Where is IDLE CONTROL VALVE on M20?...
Been reading old posts on the vacuum leak subject. ICV came up. And it occurs to me the INTERMITTENT nature of this problem reeks of possible electrical cause. What if the terminals need cleaning. I'd like to check that, if I can find the thing. ('90 325is)
Quote:
Originally Posted by Warren N.CA
After operating perfectly for about 3 weeks, my '90 325is had another fit with searching idle that stalls out, stumbling at speed. Gives 1222 code. (The code had cleared before.)
Cannot see any obvious bad vacuum hoses or connections, so I think maybe I should just replace all vacuum hoses, for starters. Can I get hose stock from AutoZone or some place? Or do I need to buy BMW parts?
If it turns out to be the intake manifold gasket, is this a DIY for someone with moderate skills and experience?
Bill R said FPR diaphragm might be bad...
should I change the FPR? Or how should I check this?
Quote:
Originally Posted by Warren N.CA
After operating perfectly for about 3 weeks, my '90 325is had another fit with searching idle that stalls out, stumbling at speed. Gives 1222 code. (The code had cleared before.)
Cannot see any obvious bad vacuum hoses or connections, so I think maybe I should just replace all vacuum hoses, for starters. Can I get hose stock from AutoZone or some place? Or do I need to buy BMW parts?
If it turns out to be the intake manifold gasket, is this a DIY for someone with moderate skills and experience?
I've R/R/inspected/cleaned round connector in front
of starter, the two rectangular ones just above it and the one on the ICV. They're all looking good, best I can tell.
Now I seem to have a rock solid crappy idle, trying to die all the time. But seems to run good above idle.
This car was gone through by the pros ($$$$) 2 years ago, and everything in the way of hoses looks brand new- AFM boot was definitely replaced and looks new.
Could I have a bad ICV?
Quote:
Originally Posted by winfred
the icv is right on top with the 3 wire plug, look at the hose from the valve cover to the throttle body, it's usually rock hard and cracked, it's cheep enough to just replace. funky running, look at the plug under the intake infront of the starter
Warren if you haven't already changed them, then only buy
buy bmw or high quality vacum hose...the cheap stuff from autozone is absolute crap... Bmw hose is sold by the meter by the dealer and i thing bma can get it for you also.. Its not that expensive considering how good the quality of the hose is... I use it on a lot of other cars also.. BMP and bavarian both sell it too including the colored stuff for some of the bmw vacum line. This is a page out of bmp designs cataloghttp://catalogs.google.com/catalogs?...ig:9428.com/96
Quote:
Originally Posted by Warren N.CA
After operating perfectly for about 3 weeks, my '90 325is had another fit with searching idle that stalls out, stumbling at speed. Gives 1222 code. (The code had cleared before.)
Cannot see any obvious bad vacuum hoses or connections, so I think maybe I should just replace all vacuum hoses, for starters. Can I get hose stock from AutoZone or some place? Or do I need to buy BMW parts?
If it turns out to be the intake manifold gasket, is this a DIY for someone with moderate skills and experience?