How do you test a egr switching solenoid? I’m getting a code po401 ( exhaust gas recirculation flow insufficient) on my 03 Sable dohc. The egr valve itself is fine and functions properly under vacuum. I’m wondering how to check the solenoid
I used the LMR chart. I have a 4lb lower with a 3 inch upper and a 3.2 inch alt pulley. I removed a motoblue 4 pulley kit and replaced with a UPR double bearing 4 pulley kit. The car also has a new tensioner pulley. The belt that was on the car for about two years and maybe 1k miles was a...
Well I just installed a Gates fleet hd belt. (The green one) Boy did I have to stretch it on. Anyway the noise is gone again. Have to wait and see if it comes back
I flipped it and the noise came back. Took a few days though. And that’s why I can’t track it down. Anytime I touch something the noise doesn’t come back for a few days. It’s hit and miss
The clutch and tob are a year old. I also did a steel retainer while it was out. I thought it was the tob originally because when you touch the pedal the noise gets faster. But if I go under the car while running you can tell it’s coming from the front of the motor.
It doesn’t make the noise...
Ok so the noise is back. Except now it doesn’t do it on startup when cold. Now it waits till the motor has some heat then comes out to play. I just wish my damn pulley set would get here already. Been waiting almost a week now
Ok. I flipped the belt. Had a hard time getting it off the alt pulley so I removed the two lower idlers. I just happened to turn over one of the idler pulley bolts and there was a tiny little pebble ground down on the back of the washer. It was polished so it was definitely rubbing on something...
I’ll try the flip and see what happens. I don’t think it’s the inner belt because when the noise started that was the first thing I changed along with the tensioner pulley( felt a little gritty).