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Matthew Jeschke's latest activity
Matthew Jeschke
replied to the thread
2015 Yukon Denali Crank/No Start
.
Not familiar with the DTC codes by heart. Sounds EXACTLY like when my VATS got triggered and my truck thought I was stealing it. It will...
Mar 23, 2024
Matthew Jeschke
reacted to
yukon06's post
in the thread
Truck wont start suddenly
with
Like
.
it was cranking strong but no start. The release of the schraeder valve solved the problem, though from other responses its gonna happen...
Mar 23, 2024
Matthew Jeschke
replied to the thread
Truck wont start suddenly
.
Maybe stating something already mentioned... But have you replaced your fuel filter? I don't know if that would help... or if could be...
Mar 23, 2024
Matthew Jeschke
replied to the thread
Random complete loss of all electrical power overnight
.
You're on right track more or less. I'm sure you've checked this... But make sure you have a GOOD connection from battery to battery...
Mar 23, 2024
Matthew Jeschke
reacted to
Stevalli's post
in the thread
Random complete loss of all electrical power overnight
with
Like
.
From what I understood, the initial spike is normal when you close the circuit with the multimeter and all the systems cycle. It only...
Mar 23, 2024
Matthew Jeschke
reacted to
OR VietVet's post
in the thread
Random complete loss of all electrical power overnight
with
Like
.
That over 1 amp draw is too much. Rule of thumb, years back, was 50 milliamps or lower and now I think is more. If you start by checking...
Mar 23, 2024
Matthew Jeschke
reacted to
OR VietVet's post
in the thread
Random complete loss of all electrical power overnight
with
Like
.
Welcome to the forum from Oregon. Do you have an alarm system on vehicle? If can get the draw that big to stay on and start pulling...
Mar 23, 2024
Matthew Jeschke
replied to the thread
Truck wont start suddenly
.
You say cranks but won't start... As in it fires over but won't keep running? Or just cranks? FYI ~ VATS will produce a similar issue if...
Mar 22, 2024
Matthew Jeschke
reacted to
OR VietVet's post
in the thread
Truck wont start suddenly
with
Like
.
Gas or flex fuel different pumps and pressures, but not by much. Just relieving pressure at that valve did not fix anything. You could...
Mar 22, 2024
Matthew Jeschke
replied to the thread
PCM delivering wrong fuel mixture?
.
Awesome just what I needed to know! Awesome, that would make most sense to me. Thanks! You hit the nail on the head. The external...
Mar 10, 2024
Matthew Jeschke
reacted to
Fless's post
in the thread
PCM delivering wrong fuel mixture?
with
Like
.
True. The purge solenoid should be closed without voltage applied. The vent valve, on the other hand, should be open with no voltage...
Mar 10, 2024
Matthew Jeschke
reacted to
Marky Dissod's post
in the thread
PCM delivering wrong fuel mixture?
with
Like
.
Usually ATF is routed through the radiator sidetank(s?), then through the external ATF cooler.
Mar 10, 2024
Matthew Jeschke
reacted to
strutaeng's post
in the thread
PCM delivering wrong fuel mixture?
with
Like
.
Oh, I was just asking if you still had the radiator internal cooler; a lot of folks will bypass it altogether, which I don't think is a...
Mar 10, 2024
Matthew Jeschke
replied to the thread
PCM delivering wrong fuel mixture?
.
GREAT Help... I dove deeper into the evap system. The solenoid is broken / stuck open, and command signal is stuck high as well. EVAP...
Mar 10, 2024
Matthew Jeschke
replied to the thread
Tru-Cool Max 40k Transmission Cooler
.
Ah gotchya, I was running my original 4L60E up to 240k miles, when I swapped with another I built up. Never had any issues with it...
Mar 10, 2024
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