914Driver
914Driver MegaDork
8/5/17 6:59 a.m.

MIL lives in an old peoples' apartment complex, her neighbor has issues with her (2003?) Saturn SUV. She can drive about 5 miles then the thing shuts off. I asked "like someone flipped a switch or does it die a slow death choking its was to the curb?" She said like someone threw a switch.

THEN, once it sits for a few hours it fires right up like nothing happened.

When it happens idiot lights come on, no gauges. No CEL and there are no codes.

I was thinking a bad gas cap vent would shut it off but then come back to life once the tank vents and equalizes pressure, what do you think?

Thanks, Dan

DrBoost
DrBoost MegaDork
8/5/17 7:12 a.m.

Crank position sensor? It's early and I've had VERY little sleep the last few days, so I'm just shooting in the dark.

Stampie
Stampie SuperDork
8/5/17 7:18 a.m.

Clogged fuel filter only because I had that happen with a rusty K10 once.

vwcorvette
vwcorvette SuperDork
8/5/17 7:41 a.m.

Moisture. Coil pack cracked? No CEL, still check for codes that may be stored as soft codes.

EastCoastMojo
EastCoastMojo Mod Squad
8/5/17 8:18 a.m.

I had a Voyager that exhibited these exact symptoms, turned out to be the hall effect sensor. I have no idea if the Saturn VUE has one of those but I would check the crankshaft position sensor if it does not.

914Driver
914Driver MegaDork
8/5/17 11:18 a.m.

Wouldn't these things show up with a scanner?

DrBoost
DrBoost MegaDork
8/5/17 11:31 a.m.

Sorry, I missed the no CEL part.
Check the battery cables. I've seen that many times. Not many other things willkill the engine like that and not leave a code behind

Johnboyjjb
Johnboyjjb Reader
8/5/17 1:43 p.m.

I was thinking valet key.

Fueled by Caffeine
Fueled by Caffeine MegaDork
8/5/17 4:31 p.m.

Battery or battery wiring issue

iceracer
iceracer UltimaDork
8/5/17 6:29 p.m.

A coil or something fails when it gets hot then works after it cools. Problem is, which one.

Appleseed
Appleseed MegaDork
8/5/17 7:09 p.m.

I had that happen on a 95 9C1. It ended up being a failing fuel pump.

KyAllroad
KyAllroad PowerDork
8/5/17 8:43 p.m.

My money is on bad battery connection as well, my Suburban exhibited the same thing until I cleaned and properly tightened the cables. Tiger Mom was not amused when she was stranded at an intersection one day.

Pete Gossett
Pete Gossett MegaDork
8/5/17 8:50 p.m.

In reply to 914Driver:

Regardless of whatever the cause is, if it has a CVT transmission it's not long for this world regardless.

dean1484
dean1484 MegaDork
8/5/17 9:19 p.m.

Data log and see what stops working.

JtspellS
JtspellS SuperDork
8/5/17 11:36 p.m.

Battery & fueling is where I would start then start looking close at harness pinch points.

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