Faults codes? If there are no codes the fault is probably outside the engine management sphere.
In order to start and run an engine needs among other things, spark and fuel. You need to discover what it hasn't got when it stops.
Have you checked for trouble codes out of your list of parts the crankshaft sensor could if faulty cause problem but so could fuel pump fuel circuit cat converter etc just throwing parts and most are evap wont fix problem
Try chamging some lug nuts.. no, need to trouble shoot and varify defective system parts before replacing, you know.
Is there spark, vacuum, fuel injector signal? Temperature related, varify temperature sensors ohms at current temperature, for coolant, intake air. EGR valve. Broken vacuum tubes or rotted and leaking.
Check and trouble shoot while its having a tantrum.
Won't allow me to hit helpful..this was very helpful to me
Thank you. There may be an obstruction in the gas tank filler tube. The gas tank also has a vent tube to the ch.canister that should not clog or be plugged.
Some electronics, such as ignition module, can quit working after the component warms up.
If you run the Tahoe engine with gas cap removed and keeps running, say there's a fuel tank vent hose problem, though some fuel caps allow one way venting, in ward.
Thank you..I will check on that..this is very helpful.
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What codes are reported?
Everything I changed was what the codes gave me..P0446...p0336..p0455
The intake air preheat, or stove, can cause problems when stuck on full heated intake air.
Thank you..I will check every thing that was suggested..
It is unwise to take codes too literally - a single fault often causes several seemingly unrelated codes. A code read is merely the first step in a diagnostic process that is systematically checking stuff and not replacing anything until other tests prove it to be faulty.
The codes were from the diagnostic done on my tahoe when the check engine light went on..someone told just today it might be the fuel pump..because it sounds like the gas is going through but it is either the fuel pump or fuel filter..
I forgot to mention that when I put gas in my tahoe, I have to put the gas very very slowly or it will squirt a lot of gas back at me..
When the fuel pump is running the fuel is circulating through the fuel rail, the pressure regulator and back to the tank - when the engine is off but the pump running it is almost always audible. Far better to stop guessing and follow a systematic approach to the problem.
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