Chevrolet Tahoe 2007 engine just quit while driving.

[DJPoertsch]

Hello forum members.

Today I had a strange situation on my way to work. I was driving down a hill as normal when I noticed that my engine had completely died. Of course, I had hardly any braking power, and the steering wheel was difficult to turn. However, all my electrical components were on. I can't say whether the check engine light was on, because the problem occurred right around a bend, and I quickly pulled into a parking space. I turned the key back on, and the engine started without any issues, and then stayed on.

Likewise, I myself repair my Tahoe in a workshop in Germany with my colleague, and I know my Tahoe really well. Nevertheless, you cannot know everything, so my question to you, whether you have had this mistake. I am an electrician from a profession and would first think that this is an electrical issue on the ignition lock. Or it is the remote start module that interrupts the electricity here. But shouldn't be, either, because it is only active in the case of ignition key position "0" in park mode.
I still have in my head,
1. crankshaft sensor
2. Alternator
3. bad mass (but all the lights would be off)
4. Petrol pump (but it was exchanged with an AC Delco in 2022),
5. MAF sensor

do you still have an idea? I have currently driven 255000 ml with him, and he never let me down. I would be happy if we could exchange troubleshooting here.

Many greetings from Germany Markus

 

[Marky Dissod]

1. Remove, carefully but thoroughly clean the ever-lovin scheisse out of, then reinstall the throttle body.
For bonus points, idle the engine while introducing a very sparse fog of poly ether amines into the intake.
It will do for the air inlet manifold, what the manual cleaning does for the throttle body, but slower.
Keep the fog as MILD as reasonably possible.

On this side of the pond, the following fuel system cleaners contain significant percentages of poly ether amines:
Red Line SI-1 Complete Fuel System Cleaner
Chevron Techron Concentrate Plus 01154100-5179P
Gumout Regane High Mileage Fuel System Cleaner
Gumout Regane Complete Fuel System Cleaner
Gumout All-In-One Complete Fuel System Cleaner
Lucas Oil 10512 Deep Clean Fuel System Cleaner
LubeGard Fuel System Booster
They are normally poured into the fuel tank, which is not as effective as introducing fumes into the inlet.

2. There are several grounds / masses scattered about the engine and frame.
The pain in the arsch is stress checking each one.
(I once had a Caprice that would shut down in a right turn, but only if braking DURING the turn.
By learning to finish braking before the turn, and opening throttle during the turn,
I avoided the symptom for years, until I had to brake to avoid harming an idiot.
Problem was not found until I tugged and torqued nearly every wire bundle on the engine.)

Wie bitte enschuldigung. Ich bin ein dummer Amerikaner. Nicht spreche sie Deutch ser gut.
is about all the German I still remember after 20 years.

 

[DJPoertsch]

1. Remove, carefully but thoroughly clean the ever-lovin scheisse out of, then reinstall the throttle body.
For bonus points, idle the engine while introducing a very sparse fog of poly ether amines into the intake.
It will do for the air inlet manifold, what the manual cleaning does for the throttle body, but slower.
Keep the fog as MILD as reasonably possible.

On this side of the pond, the following fuel system cleaners contain significant percentages of poly ether amines:
Red Line SI-1 Complete Fuel System Cleaner
Chevron Techron Concentrate Plus 01154100-5179P
Gumout Regane High Mileage Fuel System Cleaner
Gumout Regane Complete Fuel System Cleaner
Gumout All-In-One Complete Fuel System Cleaner
Lucas Oil 10512 Deep Clean Fuel System Cleaner
LubeGard Fuel System Booster
They are normally poured into the fuel tank, which is not as effective as introducing fumes into the inlet.

2. There are several grounds / masses scattered about the engine and frame.
The pain in the arsch is stress checking each one.
(I once had a Caprice that would shut down in a right turn, but only if braking DURING the turn.
By learning to finish braking before the turn, and opening throttle during the turn,
I avoided the symptom for years, until I had to brake to avoid harming an idiot.
Problem was not found until I tugged and torqued nearly every wire bundle on the engine.)

Wie bitte enschuldigung. Ich bin ein dummer Amerikaner. Nicht spreche sie Deutch ser gut.
is about all the German I still remember after 20 years.

Thank you for your funny answer. Your German is probably better, how many Germans try to speak English.

Regarding your comments. I've already cleaned the throttle body. As I said, I know my Tahoe almost by heart. I'll definitely check all the other Groundding points. What could also be the case, which I didn't mention in my first post, is that I have a Prins LPG system installed. I'll contact my specialist garage about this so they can read out the Prins control unit. There might be a fault here too. I've been on the road for another 3 days now and the fault hasn't occurred again.

But your tips i will follow also.

Thank you very much for your Experience and time to answer

Markus