Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

1976 Cadillac Quadrajet idle problem

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429bbf:
try this .i don't know if you have rivets or screws in the choke. if you have screws great .loosen the screws and turn the housing. mark it where you started.i think cw is lean can't remember. turn it about 1/4 inch. if its got rivets you will be drilling them out on an overhaul anyway. cliffs kits come with all the parts to replace the rivets. anyway with a little patience you will be able to determine if the coil is bad or you have other problems. forgot to ask do you have voltage at the choke.also as cliff says you may have to open up the idle screws. with today gas you don't get near the bang for your buckfwiw

jbmoffo:
Attaching a photo of mine.  Looks to me the choke coil was replaced at one time.  I have only owned the car one year.  I had another 76 where the coil was riveted.
Usually, there are markings to indicate RICH vs LEAN.

So, seeing it is idling too high, it may need to be dialed more lean...?
It seems to almost get stuck back on the idle cam's higher steps...kind of hard to see as the steps are behind the choke....once the accelerator is pressed again.

429bbf:
obviously the car s not running . usually when you install a quality coil the plug in is located more straight up and down  almost on the bottom also from your picture it looks like your a 1/2 off. the little line on the coil should be somewhere closer to the hash marks on the housing.the first thing id do is pull the cover off and see if the coil is attached properly to the peg. also there should be an insulator on the peg. another thing to do is engine off. push the acc.1 time and turn on the key after a couple of minutes you you should be able to bump the throttle with your hand under the hood and watch the choke open.fwiw i see it has a rear pull off also .fire it up and make sure they both work.if the rear doesnt  it can cause things not to work right.you can remove the rear and the linkage you dont need it.

jbmoffo:
I actually loosened the screws (thanks to PB Blaster) and the bugger immediately shot back to the marks along the top of the housing...rendering the connection at the bottom like you said.  I have it dialed on the last spot/mark on the left, and it ran MUCH better.  The car started...pull off opened plate slightly and the choke even opened quicker and I was able to kick it down right away as well.  In the past, the car would run nearly 3- 5 minutes before I could even think about kicking it down.
I do get a bit of hesitation on acceleration if the car is not fully warmed up...
Anything I might try for that?
What exactly is the purpose of that SECONDARY pull off?

429bbf:
the secondary pull off is just to assist  the front pull off .kind of like a insurance policy. i don't use them. it sounds like your acc. pump is giving up the ghost. id get a kit from cliff and do a complete overhaul. your parts will not hold up to the new gas for very long. fwiw

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