My car hunts for idle once warmed up. I was advised to replace the IAC. So I bought a new one , but the throttle body has other protrusions such that I cannot get a wrench on the IAC to loosen and remove it. A socket cannot fit over it due to the same reason. How do I get this sucker off?!? Is there a specific special tool needed? My wrench just grips the edge of the flat point on the IAC and slips off. Thank you!
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY Where driving hard is SOP. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT Stock V6---Stock everything. Trying to keep it 'mostly' that way. ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 The "DuetLorean" VIN #5835 Stock PRV engine Robertson Equipped Neiland/Delman Engineered Carbed and loving it! (Peugot 604 manifold) ---"Sorry purists"
It's pretty cramped in there, especially if you still have the stock throttle body heater lines. I've had some success using small or medium size channel-lock pliers. It's still a pain in the butt, though.
Fiero Parts And Acc's Web Page: All new web page!:www.rodneydickman.com Rodney Dickman's Fiero accessories 7604 Treeview Drive Caledonia, WI 53108 Phone/Fax (262) 835-9575
Thank you Rodney! Just got off the phone with you and added this to my order! You are absolutely awesome!
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY Where driving hard is SOP. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT Stock V6---Stock everything. Trying to keep it 'mostly' that way. ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 The "DuetLorean" VIN #5835 Stock PRV engine Robertson Equipped Neiland/Delman Engineered Carbed and loving it! (Peugot 604 manifold) ---"Sorry purists"
I bought a new IAC and since I got rid of the coolant lines I was able to get a wrench on it. The new IAC had little bumps on it that required a little file work to get flat but after that it was fine. Also, don't forget to add sealant to the threads, if you don't you will get a vacuum leak even with the new gasket. Mine turned out to not be the problem so I put the old one back in. My problem turned out to be a leaking vacuum line.
Crows foot that you can put a ratchet extension or swivel joint and then ratchet, maybe I actually never changed mine so I am just guessing here but here is what they look like.
I bought a new IAC and since I got rid of the coolant lines I was able to get a wrench on it. The new IAC had little bumps on it that required a little file work to get flat but after that it was fine. Also, don't forget to add sealant to the threads, if you don't you will get a vacuum leak even with the new gasket. Mine turned out to not be the problem so I put the old one back in. My problem turned out to be a leaking vacuum line.
Was the issue you had ( the one that the vacuum line was responsible for) an erratic idle when warm? I would think a vacuum leak would cause issues whether the engine is warm or not. I was advised that the number one cause of my erratic idle is a dirty IAC , so for the $10 I bought a new one on Ebay. My new one has the little raised dots on it too, i ordered Rodney's socket for the IAC. Incidentally, I found a vacuum line under the rubber air tube going from the air filter canister to the throttle body that had nothing attached to it. I have a leaky slave cylinder and need to rebuild it. I haven't been able to drive with that line plugged to see if it helps the erratic idling when warm. It's a rather small tube not the 1/2 to 3/4 inch one from the large rubber hose. I know it's hard to follow this but I don't have any pictures to reference.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY Where driving hard is SOP. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT Stock V6---Stock everything. Trying to keep it 'mostly' that way. ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 The "DuetLorean" VIN #5835 Stock PRV engine Robertson Equipped Neiland/Delman Engineered Carbed and loving it! (Peugot 604 manifold) ---"Sorry purists"
In addition to cleaning or replacing the IAC valve, you also should look in the idle air passage in the throttle body, and see if it's gunked up.
I once had the hunting idle symptoms on my old 2.8 V6. The problem turned out to be a faulty intake air temperature sensor. It was reading 60 degrees too high, and the ECM couldn't cope with that.
In addition to cleaning or replacing the IAC valve, you also should look in the idle air passage in the throttle body, and see if it's gunked up.
I once had the hunting idle symptoms on my old 2.8 V6. The problem turned out to be a faulty intake air temperature sensor. It was reading 60 degrees too high, and the ECM couldn't cope with that.
That will be my next replacement if the IAC replace doesn't fix it , thanks!
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY Where driving hard is SOP. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT Stock V6---Stock everything. Trying to keep it 'mostly' that way. ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 The "DuetLorean" VIN #5835 Stock PRV engine Robertson Equipped Neiland/Delman Engineered Carbed and loving it! (Peugot 604 manifold) ---"Sorry purists"
