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Author Topic: carburetor problems  (Read 869 times)

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Offline JonzWagon

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carburetor problems
« on: May 17, 2018, 06:34:52 PM »
Hi. Looked for answers, but no luck. I am having a carb problem and I need to have it rebuilt or replaced. HOWEVER I have not been able to figure out what kind it is or anywhere to get one or even a rebuild kit. I assume it is a Holly of some sort??? The car is a 1980  wagon with automatic trans and California smog stuff attached. Which I was told makes the carb different than others. Is there a way to identify it?  I keep finding numerous holly 2 bbls with many different apps. The car runs and idles ok, but, has no low speed power.  barely gets up my driveway. I was thinking accelerator pump problem, but don't know if it applies to this carb. If I can find a replacement one that would solve many problems.  Any advice or suggestions would be greatly appreciated.  Thanks for reading this.   John

Offline Pintosopher

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Re: carburetor problems
« Reply #1 on: May 18, 2018, 10:14:33 AM »
John , this one has too many possibilities, first verify that all of the CA smog equipment is properly hooked up, Then look for a possible EGR issue, ( Stuck open) . If you remove the air cleaner and watch for the accelerator pump jets when you activate the throttle, you may be able to eliminate that possibility. Put a Vacuum gauge to the intake manifold and get a reading at idle, and then watch when the throttle is opened. The gauge should read a steady 11 to 17 inches of vacuum at idle and drop as the throttle is opened. A fluttering  or low reading at idle is the first clue. More after the verification of fuel , pumps squirting , and elimination of vacuum leaks that may be present. There could be stuck temp control TVSS vacuum valves  issues too. More on that later.
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Offline JonzWagon

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Re: carburetor problems
« Reply #2 on: May 18, 2018, 10:00:56 PM »
Pintosopher... ..........Many thanks for the advice.  Will go thru your ideas this weekend. I will check the CA smog set up. It has been 4 years since I was in CA. and had to pass a test.  I know where to borrow a Vac Gauge so  thanks again you got me started on what to look for.  John