drivability

[jlat]

hello people: 86T here and what do youz think of this? After driving over a hour when I come down to a stop my T wants to die. I have to give some gas so it won't stall. When I just drive less than an hour it seem fine. any thoughts?
IBBY

 

[ck80]

hello people: 86T here and what do youz think of this? After driving over a hour when I come down to a stop my T wants to die. I have to give some gas so it won't stall. When I just drive less than an hour it seem fine. any thoughts?
IBBY

Sounds like a fuel pump issue. Could be you've got junk in the tank that's clogging up the strainer, and, as you drive it eventually starts to starve. Shut it off the junk settles back down, then repeats. Could also just be wearing out.

A bad fpr would probably act up all the time, as would a leak.

 

[L92 OLDS]

When is the last time you checked for vacuum leaks? Some vacuum leaks show up with a hot engine. Do you have a fuel pressure gauge? After it warms up check the fuel pressure at the rail.

 

[83StreetMachine]

I agree with above.

Check fuel pressure cold then again after a long hour plus ride.

The fuel pump could be dying and only showing signs after it's been running for over an hour or so like you described.

 

[oldsmobile joe]

CLICK BAIT. NOT ENOUGH INFO! What do you do after that? Does it restart right away? Do you have to stand on your head and snap your fingers? What?

 

[jlat]

CLICK BAIT. NOT ENOUGH INFO! What do you do after that? Does it restart right away? Do you have to stand on your head and snap your fingers? What?

hello people: You funny guy. If the engine stops coming to a stop it starts right up. I have not checked the pressure but I will. Hey Joe what do you need to know for any help?
IBBY

 

[airboatgreg]

CLICK BAIT. NOT ENOUGH INFO! What do you do after that? Does it restart right away? Do you have to stand on your head and snap your fingers? What?

Way not enough info/ 86T?????? I have a 82 E

 

[ELCAM]

More info would be beneficial.

My guess is clean the EGR system.

 

[oldsmobile joe]

hello people: You funny guy. If the engine stops coming to a stop it starts right up. I have not checked the pressure but I will. Hey Joe what do you need to know for any help?
IBBY

Are you running a lock up torque converter? Does it work? Sometimes the lockup solenoid will stick in the on position. This will cause the engine to stall at stops. Like a manual trans when the clutch pedal isn't pushed.

 

[jlat]

hello people: I have a 86 T-type Buick. Same everything as a GN. EGR is shut off thru the chip so that's out. I do believe it's a lock up TC but not sure. What ever is stock for a GN is what I have. I do believe the fuel pressure reading will tell the tale?
IBBY