Ok, im still workin on this idle problem... It runs really good on the highway and doesnt skip a beat. But at low rpms if you rev it a little seems a little hesitant. AND IDLE IS ROUGH. Is at a constant rpm but my car is shakin and if you listen to the exhaust you can hear a skip or misfire. New plug wires and coil.. And intake manifold gasket.. and other hoses. No Check engine light. Im kinda stuck here idk wtf is causing this. I plan to have it smoke tested after xmas. But i just rebuilt the head and put it back on.. There was a tube that ran from inake manifold to the block as well that looked like it may have had a bad o ring and it had some kind of spring. I have no idea what that tube is or anything. Any suggestions?
ok so wtf..?
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Well i know mine is not cracked. But idk how old it is either.. this sucks balls . Especially on a cold start its worseComment
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man sounds like you have a vacuum leak if its only at idle... check all the hoses i just fixed my buddies that was doing the SAME thing. im going to say that im almost sure its a vacuum leak. that tube is bmws way of a pcv system because there is no pcv valve. if you have ever heard of using propane and a fitting while your car is at idle and move it around your engine bay when ever the idle picks up walla there is your vacuum leak!sigpicComment
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nice i figured a vacuum leak... but seriously I have NO idea from where i have been searching... There must be somewhere im missingComment
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ok well can you hear any audible hissing sound from anywhere listen real carefully when its idling. and check the hoses under the throttle body thats a common over looked place there should be either 3 or 4 hoses going up into the bottom of it. use a flashlight because one is kinda hard to seesigpicComment
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ok whats your number bro. I go to orlando a lot i go visit family im from Fl. When i get out of college i hope to move backComment
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Man no luck... i have no idea.. Its not as bad when its warmed up either. I Went down and messed with it for a while and no luck.. Do you think it could be cap or rotor? But if its going to the shop to get some bushins replaced that i cant do at the house.. so ill have him run the smoke test.. if i cant do anything!Comment
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out of carb cleaner.. and propane... near hot engine? idk Plus i dont think i have a real portable amount anywhere around. =/ this sucks balls.. im really hoping its a vacuum leak. Its runs great when driving...Comment
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thats the sole symptoms of a vacuum leak. and yes propane. you get like the little coleman bottles, believe it or not you can buy this fitting on a parts truck. but you get a nozzle and like a hose that you would put to put air in a fish tank and bleed the propane a little bit. when the rough idle goes away and smooths out there is where the vacuum leak is. i would say look in the morning or get a second set of eyes to see if somethng is out of place maybe somethnig your missingsigpicComment
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