im not sure how to take off my egr valve on my 88 GMC 350.. would it just twist off and thats it?
2007-02-11 09:50:13 · 6 answers · asked by Chris M 1 in Cars & Transportation ➔ Maintenance & Repairs
also will it leak any antifreeze or anything if i take it off and clean it up?
2007-02-11 10:05:43 · update #1
what would be a good way to clean an egr valve because carbon cleaner is not available?
2007-02-11 10:29:27 · update #2
No they're bolted beneath the round diaphragm. To replace it you'll need a gasket. It's been my experience that a genuine GM. EGR valve works best as well as the thermo. switch that controls it. I used to mess with the switches to delay opening of the EGR valve until the poor motor got more heat in it. I had a pretty much worthless 305 that had a bad hesitation off idle while warming up. The switches were stamped with a temp and by screwing in a higher temp switch EGR opening was delayed during warm up. Re-routing the vacuum hose to the distributor to a fitting on the carb. below the throttle plates made the motor idle more evenly and improved off idle tip in also.
2007-02-11 10:38:26 · answer #1 · answered by Country Boy 7 · 0⤊ 0⤋
Heck no. 2 bolts beneath the"mushroom" top attach it to the intake manfold.Be sure to clean the mating surfaces and clear out the bolt holes. Careful with re-assembly 'cause the intake is made of 'soft' aluminium. Pay close attention to installation instructions. Do not use any "sealers" when installing-just the dry gasket(incase you need to fine tune the orifice sizes for future reuse).Orifice resizing can help to improve drivabillity while retaining engine protection against pinging.
2007-02-11 10:13:11 · answer #2 · answered by racer123 5 · 0⤊ 0⤋
It should be held to the intake manifold with 2 bolts. I think the thing that twists off you are referring to is the check valve for the air injection system.
2007-02-11 09:58:39 · answer #3 · answered by grease junkie 3 · 0⤊ 0⤋
NORMALLY HELD IN PLACE WITH (2) TWO BOLTS AT BASE OF EGR VALVE AND DAMN HARD TO GET TO MOST TIMES
2007-02-11 10:00:23 · answer #4 · answered by Hammerhead 2 · 0⤊ 0⤋
Try using an extension with a flex head ratchet or two extentions with a swival joint in the middle
2016-05-23 22:34:19 · answer #5 · answered by Linda 4 · 0⤊ 0⤋
2 bolts 13mm,and you can clean with break parts cleaner and by "tapping" on the base of it! and no no fluids come out!Good Luck
2007-02-11 10:49:23 · answer #6 · answered by baditude2075 2 · 0⤊ 0⤋