do you get any check engine warning lights before this happens??

 

No...no warning lights or check engine lights.

 

i would looking at the crank sensor.....

 

Does the Tach do anything wierd (like drop to 0 or fluctuate) right before the engine actually stalls? If so maybe a crank sensor like previously mentioned. Then again maybe the tach can't react that quick.

Another question, If you put the trans in neutral while rolling is the RPM slightly higher (about 500rpm or so) than when the car actually comes to a stop? If not, it maybe a "idle speed control mechanism". I'm not that familiar with this engine but GM often uses a valve to control air flow bypassing the throttle plate to control idle speed. If this valve or other control mechanism wasn't functioning properly, the air flow to the engine during decel could be too low and the MAF wouldn't detect enough flow and cut back fuel accordingly. Then upon re-acceleration, the engine would starve for fuel momentarily and cut off. But that's just a guess.

 

when was the last time you replaced the plugs??

 

2007 Xl7 Awd Limited

I've got intermitten ruff idle, vibrations (audible and physical) and the engine just shuts off whenever it wants to. Dealership said they can't reproduce the problem and since there is no engine code there is no problem.

Called Suzuki America 1-800-934-0934 they called the dealer, since there is no code there is no problem... just turned 10K miles the other day

Other issues with this lemon service visits 6+:
intermitten heater, would not come on
intermitten radio/cd/dvd would not come on
intermitten direction clcker noise
intermitten hi-beams
roof rack locks will not stay down dealer repaired per tech bulletin, still issue dealer replaced both rails completely, still won't stay down. Now being told thats the way they are.
Tach & speedo stick at 4K rpm and 40mph
Rear defroster 1/2 broken, dealer replaced complete back window.
Check engine light on
tighten gas cap warning, dealer replaced gas cap