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Tahoe Ignition, Injector, Other Problems?

21 messages,  Last post on Nov 26, 2009 at 1:02 AM

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What is this discussion about? GMC Yukon, Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, Fuel System, Electrical, Engine, Exhaust, SUV

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#11 of 21 Re: stalls while driving [dangar64] by kiawah Feb 18, 2008 (6:14 am)
Replying to: dangar64 (Feb 18, 2008 5:44 am) Let me get this straight. You have definite problems which set an error light, you go and have the computer read and it calls out an error code pointing to an oxygen sensor, and for some unknown reason you think they are wrong.   Why don't you buy an OBD2 reader, clear the codes, wait for your next failure, and then read the codes yourself. Then you can do your own diagnostics and be comfortable with what the computer is telling you happened.
#12 of 21 Re: stalls while driving [dangar64] by tidester HOST Feb 18, 2008 (8:13 am)
Replying to: dangar64 (Feb 18, 2008 5:44 am) I think they are wrong.   What makes you think they are wrong?   tidester, host SUVs and Smart Shopper
#13 of 21 Re: 03 gmc yukon 4x4 starting problems [gordonwhitesel] by rockman59 Feb 18, 2008 (7:58 pm)
Replying to: gordonwhitesel (Feb 17, 2008 11:50 pm) I have had a problem starting my yukon for about six months now. The weird thing is every time i contacted onstar when they were still analog and had them do a diagnostic check it started up right when i got off the phone. now they cant do one since they have gone digital and i cant start my yukon ____________________________________________________________________ Obviously there is a connection here....you might try calling OnStar and tell them what your problem is. They may be able to help out. There have been many other posts on this forum about OnStar related problems that have affected the vehicles. Replies to this message: gordonwhitesel (Feb 18, 2008 9:30 pm)
#14 of 21 Re: 03 gmc yukon 4x4 starting problems [rockman59] by gordonwhitesel Feb 18, 2008 (9:30 pm)
Replying to: rockman59 (Feb 18, 2008 7:58 pm) well i did call them and seen what they can do but they said that they cant do anything unless i take the truck to the dealer and have them put the digital box in it and pay for a year subscription of onstar which would come to be like 200 plus. that would be the last resort to me and its hard to do that since it dont start right now. thanks for the reply though.
#15 of 21 Very bad jerking and ticking by doug01 Apr 18, 2008 (8:47 am)
I have a 01 z71 tahoe with the 5.3L. The vehicle runs ok under very low load and idles fine. When i try to accellerate the vehicle jerks like i am flooring the gas and then letting off. The engine is also ticking very bad (sounds like a vehicle totally out of timing). I am lucky to get it up to 65 or 70 on the highway... Any ideas? I am thinking maybe the camshaft positioning sensor, but i am not sure. I hate to just start replacing items.. Thanks for your input. Replies to this message: kiawah (Apr 18, 2008 9:29 am)
#16 of 21 Re: Very bad jerking and ticking [doug01] by kiawah Apr 18, 2008 (9:29 am)
Replying to: doug01 (Apr 18, 2008 8:47 am) Your symptoms with loud ticking could indicate a more major problem, bad valve or camshaft. I'd get it looked at before you have portentially more serious damage done by that problem deteriorating.
#17 of 21 Re: stalls while driving [dangar64] by roblisasmith Jun 07, 2008 (6:56 pm)
Replying to: dangar64 (Feb 18, 2008 5:44 am) I have a 04 Suburban that did the exact same thing on a trip to Florida. I also took it to Autozone and the said I had a lean code on Oxygen sensor. I found in other forums that this is happening when fuel tank is between 1/2 and E. Therefore I filled up every time we stopped on way back and did not have stalls on 770 mile trip. I would like to know what is causing this problem. I need help also. Replies to this message: jamelt (Jul 27, 2009 2:49 pm)
#18 of 21 help please by pesttech1958 Jun 21, 2009 (1:35 pm)
i have a 95 s10 chevrolet pickup 2.2 has been skipping for some time now i have change plugs, wires.i have went back and pulled the plugs ,and found one that was not fireing so i replaced it, still haveing same problem,put new computer in did not help put in new injector and now the number one plug is filling up with gas and will not start.it is just that one cylinder is the only one haveing trouble with. tried hooking it up to get reading ,the computer would not read,i have done everthing that anyone could tell me to do,so please if you have any answers for me,tellwhat i must do
#19 of 21 Re: stalls while driving [roblisasmith] by jamelt Jul 27, 2009 (2:49 pm)
Replying to: roblisasmith (Jun 07, 2008 6:56 pm) I had this same problem on my 2002 Chev Suburban 1/2 ton, V8. What happens is the solenoid next to the gas tank doesn't release the vacuum created in the gas tank after you have been driving for long time without stopping. If it stops on you just get out and unscrew the gas cap. If you hear a release of the suction then that is your problem. The dealership can hook up your vehicle to a computer and tell you if this is your problem.
#20 of 21 97 Tahoe want start by accrdjdm Oct 05, 2009 (5:12 pm)
I have a 97 tahoe with the 5.7L motor. It started missing while driving down the road. and then cut off. Code P1345, came up, Manufacture control error. Replaced Distributor, new computer and new cam sensor. Fuel pump comes on and theres fuel at the top of the intake. But the is no gas to the injectors. If you put a little gas in the throttle body it will fire up. But when its going it dies. Please Help! Thanks

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