Hello,
I have a 95 Cutlass Supreme with 3.1 engine (93k miles) which typically has run great until recently when it began to stall intermitantly. It usually will only stall when I accerate then brake hard. The tach seems to drop real low then the engine shuts off. I could be driving for a half an hour then brake hard and it stalls, other times it is after only a short period of driving but it seems consistant that it happens when I brake hard. After it stalls I simply put it in neutral and restart it and all s fine.

The only thing different I have noticed may have been around a while or not but when I start the car after it has been sitting a while there seems to be a puff of smoke.

Any suggestions would be helpfull!

Thanks in advance!

bob

Just an update and still request for more information:

I lied the engine is actually a 3.4 DOHC engine, not 3.1.
Last night on the way home the car actually stalled much more often then just on hard stops, it also stalled and ran rough during leaving a stop light and braking, intermittantly.

I replaced the PCV, added a cleaner to my gas tank, filled up with Super + gas 93 octane, removed and cleaned the deposits from the ERD valve with gumout cleaner, cleaned the throttle and butterfly with gumout (can you tell I am hoping for a simple air intake problem?) But here is the killer, I replaced the Air filter (which was really acting as an oil filter) this air filter was full of oil, when I pulled out the air filter oil was dripping from it. I am hoping there is not some type of top end oil leak.

The car did run great on the way to work this morning with no stalls but I am very concerned about the oil in the air filter.

If there are any opinions on the next steps please let me know!

Thanks in advance!
bob
rwekwert@wowway.com

I would try unplugging your tcc solenoid, and see if your stall goes away. If it does, then your torque converter isn't unlocking, causing the car to stall, similar to a stick shift car left in high gear. The plug is on the drivers side of the car, at the front of the transaxle, and is square in shape with 4 wires going to it.