which vacuum hoses to replace [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: which vacuum hoses to replace


aquaman
05-31-2007, 07:51 PM
Hello all,
Got the 0236 code accompanied by a slight surging while driving on the highway(2000 rpm +). So I replace the WG solenoid and everything was good for about 100 miles then the surging came back but worse this time around. I see references throughout the board about replacing the vacuum lines. Which ones,where are they located, and what sizes are they? Is there a sticky out there that I missed? Is it just the the hoses coming off the WG solenoid? And no I have not check for vacuum yet from the vacuum pump. The actuator does move when I start the engine. Just want to make sure I am looking at all the hoses(looking for cracks first).

Thanks
A

corolla
05-31-2007, 08:34 PM
From what I remember they come from the vacuum pump below on the turbo side to vacuum solenoids (one for EGR and WG) there is a post about vacuum solenoids recently see link, look for gmctd post #27.
http://dieselplace.com/forum/showthread.php?t=153900&page=3&highlight=vacuum+line