'93 JGC V-8 Stumbles At Low Speed
My '93 JGC V-8 has a problem with dying at low speed. It can't take
acceleration, then getting off the throttle. The RPM will drop to zero, then the engine will catch or die. Happens when starting too. In the old days I would suspect the dash pot, but with fuel injection I don't think there is anything similar to that to prevent a too rapid reduction in throttle. Gets to be very annoying with several re-starts, and the engine dying while trying to negotiate a parking lot. No problem at cruising speed. ---- |
Re: '93 JGC V-8 Stumbles At Low Speed
Hi ----,
The idle step motor is responsible for setting the idle speed to what the computer dictates. Yours will look similar to the one that's on this six cylinder throttle body: http://members.cox.net/wilsond/tb/tb.html You may be able to fix it by cleaning it, or wire harness may not be making contact. My problem was somewhere else so I just increased the throttle stop speed, and forgot about it. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ ---- wrote: > > My '93 JGC V-8 has a problem with dying at low speed. It can't take > acceleration, then getting off the throttle. The RPM will drop to > zero, then the engine will catch or die. Happens when starting too. > In the old days I would suspect the dash pot, but with fuel injection > I don't think there is anything similar to that to prevent a too rapid > reduction in throttle. Gets to be very annoying with several > re-starts, and the engine dying while trying to negotiate a parking > lot. No problem at cruising speed. > > ---- |
Re: '93 JGC V-8 Stumbles At Low Speed
Hi ----,
The idle step motor is responsible for setting the idle speed to what the computer dictates. Yours will look similar to the one that's on this six cylinder throttle body: http://members.cox.net/wilsond/tb/tb.html You may be able to fix it by cleaning it, or wire harness may not be making contact. My problem was somewhere else so I just increased the throttle stop speed, and forgot about it. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ ---- wrote: > > My '93 JGC V-8 has a problem with dying at low speed. It can't take > acceleration, then getting off the throttle. The RPM will drop to > zero, then the engine will catch or die. Happens when starting too. > In the old days I would suspect the dash pot, but with fuel injection > I don't think there is anything similar to that to prevent a too rapid > reduction in throttle. Gets to be very annoying with several > re-starts, and the engine dying while trying to negotiate a parking > lot. No problem at cruising speed. > > ---- |
Re: '93 JGC V-8 Stumbles At Low Speed
Hi ----,
The idle step motor is responsible for setting the idle speed to what the computer dictates. Yours will look similar to the one that's on this six cylinder throttle body: http://members.cox.net/wilsond/tb/tb.html You may be able to fix it by cleaning it, or wire harness may not be making contact. My problem was somewhere else so I just increased the throttle stop speed, and forgot about it. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ ---- wrote: > > My '93 JGC V-8 has a problem with dying at low speed. It can't take > acceleration, then getting off the throttle. The RPM will drop to > zero, then the engine will catch or die. Happens when starting too. > In the old days I would suspect the dash pot, but with fuel injection > I don't think there is anything similar to that to prevent a too rapid > reduction in throttle. Gets to be very annoying with several > re-starts, and the engine dying while trying to negotiate a parking > lot. No problem at cruising speed. > > ---- |
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