The shift linkage has detached from the transmission
On that van, like many other GM front-wheel-drive vehicles, the shift cable goes through a bracket on the transmission to the linkage( the little metal arm). Where the cable connects to the linkage, there is a ball stud. It takes quite a bit of force to disconnect the cable from that. If it became disconnected at that ball without any other outside influence, the shift cable may need to be replaced. You can try pushing the plastic end of the shift cable back on to that ball stud ,it should click into place.
If the ball stud became disconnected from the linkage(little metal arm), the linkage would need to be replaced.
There should be a locknut holding the linkage to the transmission stud right above the range selector switch. If it came loose of there, you may need a new linkage, and to replace that nut
SOURCE: replace thermostat 2003 pontiac montana
yes but with the right shaped wrenches and tiny hands it can be done without removing the exhaust crossover pipe
SOURCE: 2002 Pontiac Montana Thermostat replacement
check the coolant level fiirst...if that is low it wont give you any heat.....to change the thermostat you have to follow the top radiator hose to the engine.at the send of it you will see a clamp take it loose...then you will see the thermostat housing its held in place by 2 bolts . once you remove them you have the thermostat....make sure you clean all the old gasket material off both the housing and mount.also make sure you get a new gasket.
SOURCE: transmission problem 2004 pontiac montana van
i have the same problem when iam driveing it kick hard into 1 gear and 2,,, shut it off,,and it stops for about a day or 2,,, then comes back,,, it is still under warranty,, and mr,trann said the montanas or bad for valve bodys,,, i,ll let you know how i make out,,, but my shop said he was going to rebuild the hole thing,,,witch is good beecause they put all up grade parts in,,,,,, unlike the **** GM parts
SOURCE: 2000 pontiac montana wont go into 4th gear
I would be interested in knowing if the thermostat is sticking open. Most Overdrives are prevented from engaging until the coolant temperature is over 177 degress F. Check you temp gauge...does it read Low? If so, change the t'stat, and see if that fixes your problem, or, if that does not help, get a complete transmission FLUSH, BEFORE you go out and get a rebuild. You just might save a ton of money.
SOURCE: 2004 Pontiac Montana, can you replace the end
you have to replace the entire cable.
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