Have a case of the Stalls

S

Stordy78

Member
Car
2003 FX45
Name
Lee
Hi, i've lurked and lurked and can't find a solution.

I have a 2003 FX45 with 111k on it.

I have the stalls. Driving along and the car turns off. No CEL, no lights and no codes. I have had the throttle body and MAF cleaned. Replaced the cam and crank sensors..... Went about 1,500 miles and the stall happened again. Starts up, no problem, runs really well.

It's tough throwing parts at it, but not knowing what's actually wrong.

The mechanics said it did not need the idle relearn, etc.

Just curious to see if anyone has suggestions.

Thanks!!
 
Sounds like your ECU is failing. For starters I would go behind the glovebox and scrub/treat the ECU main ground. It may be corroded, or even loose.

That ground point can cause all kinds of mayhem.
 
Maleficio said:
Sounds like your ECU is failing. For starters I would go behind the glovebox and scrub/treat the ECU main ground. It may be corroded, or even loose.

That ground point can cause all kinds of mayhem.
Click to expand...


Took off the glove box....the ground wire, which looks impossible to unholy without taking a few other items out, is tight and the copper is bright....looks like no corrosion, but I am goimg to go back out and see if I can snap a shot with my phone from a different angle.

Looked in the engine bay at some other grounds.....all look pretty good.... The battery ground to the body might have a little bit, but that doesn't look to be connected to the ecm.
 
Pic of where I think the ground is behind the glove box.20191221_163431.jpg

Pic of the connection. It's tight and looks like no corrosion at all.
20191221_163002.jpg
 

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My corrosion was on the inside of the contact facing the screw hole. Mine looked fine on the outside, too. I had to bend a bracket out of the way to access the ground. It's worth your trouble.

The battery ground to the body is how everything electrical gets its ground. This is why you should disconnect it anytime you're doing work like this.
 
Maleficio said:
My corrosion was on the inside of the contact facing the screw hole. Mine looked fine on the outside, too. I had to bend a bracket out of the way to access the ground. It's worth your trouble.

The battery ground to the body is how everything electrical gets its ground. This is why you should disconnect it anytime you're doing work like this.
Click to expand...

Seems pretty good?
20191221_171201.jpg
 
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