Matt Posted March 25, 2005 Report Share Posted March 25, 2005 True I have been looking for a reason to explain the rough idle and hesitation that sometimes only starts after 30 to 40 min of driving. I also have to note however, that the idle has not been perfect since I got the car.( 6 or 7 weeks) But today on the way home from work was the pits. The engine was loosing power at steady speed (50-60 MPH) and at take off it was bucking and trying to stall out. I did the old pull over and shut down and re start to fix it but it did not work this time. I got it home and just had had enough. I ate dinner and then went out to find the problem. With the engine running I started to search,it was searging up and down.I looked around for a wile but found nothing. I then took off the air cleaner and after my ears got used to the air sound rushing past the butterflys I detected another sound of air. It was a vacume leek. Off the throttle body intake is a vacume hose, on the water pump side of the intake. (front of engine-still not used to sideways mounted engine) This line goes to the top of some kind of sensor, the bottom of this sensor has another vacume line that goes to the EGR valve. This sensor also has an electric line to it. Ware this line comes out of the throttle body is a rubber reducer elbow. That elbow was cracked and not like rubber any more. It was brittle like a rock. I dont know if its been leeking vacume for a long time or if its been part or all of the cause for all my rough idle and hesitation problems. It may have been leeking slightly for a wile giving me problems and finally got so bad tonight that all heck broke loose. I will know more Friday when I drive it for a wile. I was able to find some fittings to fix it till I get new parts and the engine did smooth out somewhat but I need to drive it for a least 40 min. I'm falling asleep. Been up since 4:45 AM it's now 10:15PM Later... Link to comment Share on other sites More sharing options...
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