87 stalling when i come to a stop

[1987ss]

i have a 87ss that i put a 350 .30 over with a mild cam and i put all the emissions equ. back on engine so it still looks like the 305 ho.. i put in new radiator,fuel pump,water pump,hoses etc.. the motor has like 1100 miles on it now the tranny is origional 100k+ on it.. heres the question when i get off the freeway or slow down from higer speeds the engine will tend to shut off when i come to a complete stop, then it will start right back up again.. it just started like 100 miles ago... any feed back would be appreciated....thanx

[mfb496]

if you still have the overdrive it could be the converter locking up and causing a stall.it use to happen to me with a tpi malibu i had.seems to happen when trans is to hot.???????

[1987ss]

yeah, I still have the th200r4 tranny in it.. what can be done to avoid it happening is it o.k. to drive?

[frankjc]

I heard that you can unplug the wires that go to the transmission and see if it still happens. Often it is a solenoid.
Check this out...---->>>> http://www.montecarloss.com/TCC_Solenoid.html

[1987ss]

thank you frank im try that in a week or so.. i read the link you provided and it hit the nail on the head. thanx alot...

[frankjc]

You're welcome.

[kdude]

I just replaced the solenoid in my tranny tonight (my car has done the same thing for 10 years) and it seems to work fine now. I bought the transmission solenoid at advance auto for 32 bucks. I thought it was the tourqe convertor but this solenoid solved the problem, woo hoo.

[frankjc]

I haven't done mine yet, the car is currently unregistered. I thought my transmission was toast, but I did some searching and found that article.
Was the solenoid that you got at Advance the universal type that you have to splice the wires together? I priced it at the dealer, and I think it lists at about $60.
I was going to sell this car when I thought it needed a transmission but now I have decided to keep it as a "project" car.

[kdude]

It was the GP Sorensen TSS 13. It has butt conectors on the new solenoid. Just cut the wires on the old solenoid and splice it together and install. I was going to sell my monte too because I thought it was the tourque convertor but thanks to this great forum I am keeping mine also.

[1987ss]

just returned from out of town ill probaly get that in this week..hopefully

[99grandgt]

i think i might a have similar problem...it seems that my tranny doesnt want to lock up, i have no idea what who did to my car before hand though. im going to put a new trans filter/fluid in it sometime soon, and a tranny cooler, but wondered, who else's car runs at 3000rpm going 60-65? that to me seems a little high, especially with .80 overdrive...any help would be great!!! it could be a different rear gear too..not sure though

[slimfatboy]

2004r's are a .67od. rpm's sounds several hundred high. mark your driveshaft with a piece of chalk and spin your tire 10 times. count the driveshaft revolutions. then divide by the 10 rotations. maybe you have 4.10's?

[Badluckjulio1105]

hello i'm having the same problem with my 1987 monte that i'm restoring in which when i get off of highways or after driving for a while then entering stop and go traffic it starts to go close to a stall ot stalls. i was originally thinkning it was due to the fact that i need to get the pison seals replaced to maintain pressure but after reading this i'm very confussed about it. please help

[1987ss]

ttt

[DCarr511]

The times I have ran into this and it was due to the torque convertor not unlocking the car would always buck just like a manual trans car would if you came to a stop while in gear and didnt depress the clutch pedal. If its not doing that then it isnt related to the trans or convertor.. atleast thats my bet

I would say it has more to do with a high float level and the engine flooding out for a second while deaccelerating or the EGR valve sticking open