E46 Fanatics Forum banner
  • Hey everyone! Enter your ride HERE to be a part of September's Ride of the Month Challenge!
vaccum leak
1-10 of 10 Results
  1. E46 General
    Hello. I've recently got a 2001 e46 325Ci (vert) with about 138,000 miles on it. While my mom was driving it, the SES light appeared on the dash (the day she was going to get emissions done on it *ugh). We identified the issue and the po491 p0492 codes came up. We replaced one vacuum line (the...
  2. E46 General
    Hi fellow bmw enthusiatst! Im having a odd problem with my modified m52tub28. To have a idea of my setup: K&n inlayfilter 330i filterhousing/maf, intake manifold/camshaft. Ebay headers, m3 exhaust system (post cat o2 delete), m3 6spd gearbox, 3.38 diff, 19” m3 rims, bilstein b12 prokit...
  3. E46 General
    e46 m52tub engine. The previous owner for unknown reasons decided to drill a hole in the intake manifold, stick a vaccuum hose in it, connect that hose to the fuel pressure regulator and plug the vaccuum hose that goes to the ccv with a rivet. Does anyone know why would you that? And what would...
  4. E46 General
    When my car is started cold, it makes a weird high pitched noise - I can't decide if it's a whistle or a mechanical squeal. I read lots of threads describing similar issues and it seems most are either caused by pulley bearings or vacuum leaks. Armed with that knowledge I had another look and...
  5. E46 General
    Hey everyone, I took my car to a shop and paid $85 for them to fix a vacuum leak. I picked the car up and the SES light is gone. They said it was a hose under the engine so I assume it was some CCV hose. After I drove it for a bit, white smoke started coming out of the exhaust when I took off...
  6. E46 General
    Just had the check engine light come on in my 02 325 XI and had it plugged in at autozone . 2 codes came up . 1.) P0492 secondary air injection system (bank 2) 2.) P0491 secondary air injection system (bank 1 ) The code reader recommended that the likely solution is the replace the smog pump...
  7. E46 General
    So, just bought a 01 325i. I believe i have a vac leak. I hear a air/hissing sound around my DISA valve so replaced it. Still a vac leak in the same area based off the hissing sound. Also my beak booster has a vac leak so my question is, is the break booster my problem?... to go more in detail...
  8. E46 General
    Ok here we go. On monday I bought this car with 130k miles on it. She drove like a beast! There was no slip, lag, or hesitation in performance. It didn't have any serious problems at first.There was an oil leak coming from the valve cover gasket and it was making a squealing noise, in which it...
  9. E46 General
    About a month ago I changed my VCG and a the next day my CEL appeared. I took it to my mechanic twice with the codes po491 and po492, but the CEl comes back on. He said the vacuum lines were brittle , and this sort of thing just happens. I took it out on the beltway last weekend and it did...
  10. E46 General
    Hey guys, my 2003 325i has been making a sound that makes it sound a little like a diesel. i thought it was the disa but the way i hear it its comeing from around the oil filter housing, you can see where i point in the first video. it also sounds like i have a HUGE vaccum leak. i replaced both...
1-10 of 10 Results
Top