2001 6.0L engine. Suburban? 2500HD
the coolant must be full, no air pockets that cause ETC sensor to lie.
and chev, love to self protect the engine at overfheating
or the ECT telling lies , AIR pocket there = lies.
my scan tool I can watch the ECT full time. even graph it.
all I have are questions, things I see in person fast.
IMMO lamp glowing wrong on dash, IMMOBIlizer? ?????
if yes it cuts the engine is 3 to 10 seconds. by design.
seem spark is good and only fuel wrong is fuel pressure at spec?
or is AIR wrong, all engines must have air to start, or stalls.
air comes 2 ways (old to newer) IAC/ISC or
TWB (GM TAC)
TAC IS 3 PARTS (TB/TPS,CONTROL TAC, AND PEDAL TPS.)
6.0L told so the answer. is.
yes this engine is TBW , throttle by wire. see that TB see the huge motor on side of TB well it sticks closed, there is no IDLE air.
scan the PCM yet, see DTC errors, never skip scanning or go broke guessing,
the tools is free RIO paid for 1st shop hour labor not paid.
see?
TBW errors, DTC , throttle by wire, errors must not be ignored
and goes to limp home mode or stalls.
or is low fuel pressure;. this too, is a tool for fuel rail pressure at spec, if low can be FPR stuck open or weak pump./
best is scan at the same time as the stall, (real savvy like that)
bad TB motor or bad throttle pedal assembly , the system as up to 4 TPS. (
2 up top, and 2 in the pedal, all cars with TBW , all TPS POT.;s
must agree, or car goes dead or is 20MPY limp home restricted.
so fast right foot fails to save the stall
but if the TB motor is jammed that foot is ignored.
TB = throttle body, all Xyz names here are ASE/SAE standard names./
oops 6.0L has IAC, my tech answer is the IAC is faster than that huge TWB TB motor . so IAC is clogged. lean IAC and TV, throttle valve.
are your cars foot pedals FIXED, (not adjustable option)
who GM has spare TPS sensor for throttle pedal assembly,
nice that, if DTC say any TPS bad it is.
this is the pedal TPS, , TWB TB sensors is there and changed by you, but pedal has one too.
I scan first and not go broke throwing parts,
2001 Chevrolet Silverado 2500 HD .USA truck.
reading cars schematics NOW the pedal has 3 POTs. not 2.
APP 1 TO 3, ) AND TO POTS IN THE TB TPS UP TOP FOR 5 TOTAL POTS.
TBW ,MEANS GM TAC MODULES ALL. TB+TPS + APP)
Accelerator Pedal Position (APP) Sensor
https://www.rockauto.com/en/catalog/chevrolet,2001,silverado+2500,6.0l+v8,1371529,interior,accelerator+pedal+position+sensor,5061
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