2001 Chevy Suburban 8.1L K2500
Dear MW: When driving with the cruise control engaged at 70
mph, the car will quit running. Sometimes if you give it gas it will
restart but the cruise control will not work. Pulling the car to the
shoulder and turning it off and back on resets everything and it runs fine.
It usually doesn't stall again that trip after one time.
I took it to the local dealer and they thought it was the ignition
switch (circuit 3?)so they replaced it (~$400). It worked better. Before
the new ignition switch, when it stalled, the gear shift indicator was
out or it would misread and other electrical anomalies would occur.
It will stall when idling, like at a stop light, but not as frequently
as when running at speed.
This problem seems to be getting worse as time goes on.
I will appreciate any help on this that I can take to my mechanic.
Thanks!!!
MW:
It sounds as if you may have more than 1 problem.
Seems that the ignition switch(pretty common) Fixed a few things. Stalling at any speed
could be a fuel pressure problem. Stalling at idle coulkd also be a problem with the throttle
body carboned up and needs to be cleaned, or a vacuum leak. Will need to have codes
scanned, live data looked at, and go from there. If it when it dies, it chugs a little, i would
lean more towrd a fuel pressure problem. If it just shuts off, then most likely electrical.
Back
Dear MW: When driving with the cruise control engaged at 70
mph, the car will quit running. Sometimes if you give it gas it will
restart but the cruise control will not work. Pulling the car to the
shoulder and turning it off and back on resets everything and it runs fine.
It usually doesn't stall again that trip after one time.
I took it to the local dealer and they thought it was the ignition
switch (circuit 3?)so they replaced it (~$400). It worked better. Before
the new ignition switch, when it stalled, the gear shift indicator was
out or it would misread and other electrical anomalies would occur.
It will stall when idling, like at a stop light, but not as frequently
as when running at speed.
This problem seems to be getting worse as time goes on.
I will appreciate any help on this that I can take to my mechanic.
Thanks!!!
MW:
It sounds as if you may have more than 1 problem.
Seems that the ignition switch(pretty common) Fixed a few things. Stalling at any speed
could be a fuel pressure problem. Stalling at idle coulkd also be a problem with the throttle
body carboned up and needs to be cleaned, or a vacuum leak. Will need to have codes
scanned, live data looked at, and go from there. If it when it dies, it chugs a little, i would
lean more towrd a fuel pressure problem. If it just shuts off, then most likely electrical.
Back
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