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SUVs GMC Yukon GMC Yukon Start Stall Idle Problems
48 messages, Last post on Sep 17, 2009 at 12:59 PM
You are in the GMC Yukon Forum. Your Hosts are steve_ & tidester
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I love my 2001 Yukon xl Denali with over 130,000 miles but having some starting problems. The initial problem was taking several tries to start, when after it seemed a clog was cleared and the engine banged loudly once it would clear and start and be ok for the rest of the day, but a little more difficult in colder weather. I brought it to a small gas station where they kept the vehicle over night, recognized the problem but couldn't diagnose. I went to the dealer and they couldn't even find the problem after keeping it over night. The problem is now getting worse. I have to keep pumping the gas rigorously several times and restart several times to finally get it to turn over and actually start--it is not weather dependent and a little harder to start even after the vehicle has been in use during the day. It has never not started, but I really don't want to get stuck somewhere. I don't know what to do or where to take it---any advice.
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Here is a wierd one for you all. Once this truck gets below a 1\4 tank it will not start sometimes. The other day it did this with 3\8's of a tank. Basically you can run it all the way down to empty and as long as you put fuel in it, all is good. If you shut it off under a 1\4 tank, leave it over night it won't start. If you put a gallon of fuel in it, it will crank. This happend the other day and there were still 10 gallons of fuel in it when I filled it up, so I know it is not a guage issue. Maybe the pressure regulator?
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Replying to: tbensor (Feb 18, 2008 11:23 am) |
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After my 93 yukon has warmed up and I shut it down. When I go to restart it, it will not start. It will turn over and act like it want's to start. I pull the number 1 plug and see if I am getting spark I get a real weak spark and then nothing. If I let the vehicle sit for a little it will fire right up. I have replaced (coil, icm, rotor, cap.) The wires and spark plugs are good. I thought it might be running a little hot, so I replaced water pump, therm, as well as the temp sending unit. When I do the code reader I get 54 and 32. Having a lot of trouble figuring this out. I have been working on this for about 3 week's any help would be appreciated
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I am now having idling problems when the vehicle approaches red lights or comes to any stop. It starts right up without problems. It has 102,500 miles on it and has been great until now. If anyone has any suggestions that might shorten my visit to the repair shop tomorrow, it would be greatly appreciated. Thanks in advance.
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Replying to: jcanbounc (Apr 13, 2008 4:07 pm)
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Replying to: stormnn (Apr 27, 2008 2:32 pm) |
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