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Post by 87bigburb on May 2, 2005 9:19:52 GMT -5
Hey there everone! I have a 1986 GMC suburban with the 7.4 liter motor. The choke is either stuck open or it takes almost an hour of running (210*) to finally turn off. I saw a reference to a choke plate in a previous post is this the best place to start hitting things with my hammer? Thanks in advance for your help
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Post by 19_Chevelle_69 on May 2, 2005 21:24:44 GMT -5
Welcome to the site!  The electric choke stats eventually go bad, and can cause different symptoms like that. They either stick open from a weak spring, or the mounting surface gets corroded, and the stat has no ground for the bimetal to heat up and open. |
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Post by 87bigburb on May 4, 2005 18:28:01 GMT -5
It was the choke stat !!!! the spring was shot. When I compared it to the replacement part it was obvious that the spring had just lost all of its "spring" I used a circut tester and verified it was getting a good ground before pulling it and then replaced the stat.Thank you. p.s. I left the bottom rivet in and just drilled out the 2 top rivets because the valve cover was in my way and it looked like a mess to pull the housing off of the carb... as in little linkage and choke pieces and other fun stuff. The only problem is that I had to spin the retainer clip at the bottom rivet 180* to get the new one in. I can't rotate it more than 90* back around but it seems to be holding fine. If it acts up again I know where to look first. Thank you again!
Dave
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Post by 19_Chevelle_69 on May 4, 2005 21:13:56 GMT -5
That's great news! I leave that bottom rivet in there when I change an original one on the engine as well. As long as the retainer has even a slight grip on the stat, you should have no problems. |
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