00 Montana has been at dealer 3 times in 8 days.the low coolant level light came on & would not go off.took veh to dealer on a tues was informed would have back in 2-3.after review there was a leak in the lower intake manifold but leak was not external since no fluids were on ground.supposed parts were replaced along w/gaskets.advised dealer coolant had to be going "somewhere" if not external; so requested for an oil change to be done since bad coolant may have gotten into oil. Dealer refused but service mgr approved.veh was ret'd to me on fri.upon leaving dealer engine had a chirping noise not there previous.spoke with salesman and he confirmed there was a noise & to bring veh back in next day for service to look at.on way home, low coolant light came on again;problem not fixed.upon taking vehicle to dealer following day they claimed their was coolant or some form of liquid on belt and would clean off.service department stated the low coolant light did not come on.assured us vehcile safe to drive.the rest of weekend low coolant light kept coming on at sporadic intervals. Contacted dealer Monday morning;was advised to bring in on Wednesday for further investigation.dropped vehicle off & dealership had vehicle for additional day & advised the sensor was bad and was replaced.dealership states chirping noise was gone as they took apart belts and fully cleaned again. Engine at time of drop off was running rough.dealer states after computer and diagnostic testing engine is fine.recv'd vehicle back w/ sensor replaced;chirping noise somewhat dissipated-however not fully & was advised vehicle is safe to drive.vehilce appears to be okay but still notice not running as crisp as before.dealer affirms since vehicle under warranty to see how things go & advise if any further problem.another Pontiac dealer w/in 15 miles had 3 Montana's in service depart. For same related issues.one of those vehicles sustained $5,100 on a 99 model manufacture defect w/engines &/or parts?mll

- Warminster, PA, USA

Since 10/25/00 when the first time this van proceeded to overheat and the theromstat was changed in Ohio on vacation. Brought it back to the dealer in mo and was told they had to tighten a clamp and check the theromstat and they said problem solved. Its been in the shop for various other problems but always smelling antifreeze and then the air conditoner wasnt cooling the way it should and the radio was replaced due to the fact the lcd screen went out. On 9-13 - 01 was back in the dealer...different dealer than it was purchased from...for various items and one to check on the air conditioner for we were going on a trip...was told everything was fine. Went on trip and on the way home..the van started to overheat again...stopped pulled over and let the van rest and shut off ac and proceeded to hotel and then drove home the next day and in the dealership it went only for them to tell me it was a defective raditor cap and debri in between the raditor and condersor.

- Florissant, MO, USA