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09-13-2004, 01:25 PM
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#1 | |
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AF Newbie
Join Date: Sep 2004
Location: Blooming Grove, New York
Posts: 1
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Strange Surge/Hesitation
I have a 1994 Lesabre w/ 110k on it, in which I as recently a year and a half ago replaced the ECM. Now, after about 30 minutes of driving, the car starts to surge, even tho it still accellerates quite chopily, and then as soon as I come to a stop it shuts off and won't turn back on till it's cooled off for at least ten minutes. I think it's either my oxygen sensor or my EGR valve. I just hope its not my ECM again. Post any ideas suggestions! Thanks.
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10-10-2004, 10:26 PM
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#2 | |
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AF Regular
Join Date: Sep 2004
Location: Kalamazoo, Michigan
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Re: Strange Surge/Hesitation
Check the coolant temp. sensor, the fan relays, and the o2 sensor. one or a combination of these may be bad. Also, if that isn't the problem, I suggest checking to make sure the Ignition Coils are properly functioning. Does the exhaust look black, and have a bad odor?
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10-13-2004, 05:01 PM
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#3 | |
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AF Enthusiast
 
Join Date: Apr 2004
Location: Orlando, Florida
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Re: Strange Surge/Hesitation
You may also have a sticking TCC Solenoid. You may simply unplug it to check.
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10-13-2004, 05:42 PM
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#4 | |
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AF Regular
Join Date: Sep 2004
Location: Kalamazoo, Michigan
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Re: Strange Surge/Hesitation
"You may also have a sticking TCC Solenoid. You may simply unplug it to check."
Ditto.
__________________
1986 LeSabre Limited L67 sleeper   Fully ported & polished, shift kit, CAI, F41 polyurethane suspension, headers & 3" exhuast, |
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10-15-2004, 07:22 PM
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#5 | |
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AF Regular
Join Date: Aug 2004
Location: Greater Boston area
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I had a similar surging problem on my '97 a couple of years ago. Replaced the throttle position sensor and the problem stopped right away.
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10-15-2004, 08:12 PM
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#6 | |
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AF Enthusiast
Join Date: Apr 2004
Location: Orlando, Florida
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Re: Strange Surge/Hesitation
Always test before replace/purchase.
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