Hesitation while turning - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-18-2003, 10:04 PM   #1
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Default Hesitation while turning

My 98 Se with about 80K wants to hesitate when accelerating from a stop sign or light and turning left. It doesn't do it on a right turn from a stop. It feels almost like the engine is going to die with no throttle response for a second or two (seems like forever if traffic is coming). Any clues as to what might be happening? Thanks for the input.
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Old 03-18-2003, 11:13 PM   #2
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There'* been some discussion about this before. Different theories about fuel tanks and oil pans. Do a search on it. Some good key words would be STALL DIES TURN PICKUP, etc. Can anyone else jump in here? I have to run for a bit!

BTW, Guff, where in N CA are you?
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Old 03-19-2003, 12:15 PM   #3
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I am in the Real Northern Ca ie Eureka.
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Old 03-19-2003, 02:06 PM   #4
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With 80K on the car, you might want to look at the Heated O2 sensor. It'* about this mileage that it goes. From there we go to:
Check the TP Sensor and related wiring.
Check the MAF Sensor and related wiring.
Check the EGR valve for a sticking pintle.

If these don't do it, it'* time to check the fuel system itself. You may have a pressure problem if the above items check out. Let us know what you find and I can take it further. Good Luck!
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Old 03-19-2003, 02:16 PM   #5
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That turning left part sounds like our phantom fuel tank problem.
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Old 03-19-2003, 08:49 PM   #6
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Default Hesitation while turning

I had this exact problem.
I had my tranny replaced this past summer at the dealer. I basically had my @ss handed to me when the bill came but that'* besides the point.
When they replaced the transmission it was hesitating around corners after the engine warmed up. I was pretty pissed that I had to take it back but this is what they said was wrong with it on the receipt ::::::: In transmission, filter broken at inlet, replaced filter kit and topped off fluid:::::::. After I got this fixed I havent had any problems since.
Hope that helps.
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Old 03-19-2003, 10:01 PM   #7
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What is actually bogging down? Is the engine losing power or does it feel like something is stopping the engine from gaining power?
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Old 03-20-2003, 12:32 PM   #8
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It feels more llike the engine won't respond. Idles fine but when I hit the accelerator nothing happens for a second or two. It only happens when turning left and after I have been at the intersection for a short while. On a stop and go with no wait there is no problem and no problem just making a left turn without having to stop. Thanks for the ideas so far.

Guff
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Old 03-20-2003, 02:07 PM   #9
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If it'* related to the fuel pump/sock/sending unit, as it appears to be in my '92, and as others have also reported, the problem only occurs when the fuel level in the tank is less than 1/2 full.
How full is your fuel tank, and does it matter how full it is when the problem occurs?
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Old 03-20-2003, 11:44 PM   #10
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1) spark plugs, air filter, wires, fuel filter, fuel pressure.

2) throttle position sensor
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