Last post on Aug 11, 2013 at 2:16 PM
You are in the Pontiac Montana
What is this discussion about?
Pontiac Trans Sport, Pontiac Montana, Van
#1411 of 1493 Re: Pontiac Montana 2001 Overheating!!!!! [shanesmom]
Jun 22, 2009 (5:40 pm)
Could be bad "head gasket" - which is different then intake gasket. One of my previous vehicles was a Chev Sunbird. Loved its engine power but it loved eating head gaskets even more. After its 2nd head gasket (due to over heating when idling in traffic), it had to go. With cold rad, remove its main rad cap and start its engine. Let idle for more then 10 minutes - or when it heats up too much. If you look down with a flashlight and see bubles floating upward inside the main rad, this its head gasket it gone as well. That's how I confirmed both head gaskets were gone on my previous vehicle. re: Bubbles = trouble. LOL!!!!
Hope this helps...
#1412 of 1493 Re: 1998 Transport transmission/axle noise [fryman]
Jun 22, 2009 (7:34 pm)
Did you ever get a diagnosis on this? Did it prove to be the hub assembly like guehouse suggested? If so which wheel? I have the same symptom of a sound from the front end like an airplane prop slowing down when decelerating. 2003 Montana AWD w 80K miles.
#1413 of 1493 Re: Pontiac Montana 2001 Overheating!!!!! [shanesmom]
Jun 22, 2009 (7:57 pm)
Bad heater core?
#1414 of 1493 Re: Pontiac Montana 2001 Overheating!!!!! [shanesmom]
Jun 22, 2009 (8:38 pm)
i had the same problem and it turned out to be a leak into one of my cylinder from a bad head gasket. good luck
#1415 of 1493 Re: 1998 Transport transmission/axle noise [aitkenhead]
Jun 25, 2009 (3:41 pm)
Not yet but based on guehouse diagnosis and the shop manual, probably is the wheel bearing. Think it is the passenger side.
#1416 of 1493 Re: Pontiac Montana 2001 Overheating!!!!! [bikeral]
Jun 25, 2009 (3:45 pm)
I had the same problem and it turned out to be a blown head gasket.
Replaced the head gaskets and remanufactured heads and have gotten another 25000 miles of it and still going strong (172K to date). Rear side of the engine is a bear to work on though but I was able to complete the job (first engine top end rebuild). The shop manual is almost required if you are going to do it yourself.
#1417 of 1493 Re: 1998 Transport transmission/axle noise [fryman]
Jun 25, 2009 (7:17 pm)
Well, I just spent all day changing the front left wheel hub-bearing assembly, and yep, that's what the airplane prop noise was. The worn assembly was so bad that, after removal, it could not be turned by hand, and the ABS sensor housing (integrated with it) was all cooked and distorted.
#1418 of 1493 Re: 1998 Transport transmission/axle noise [aitkenhead]
Jun 27, 2009 (1:04 pm)
Just spent most of the day replacing the front passenger hub assembly and I am happy to say I could let the stewardesses go. The hub came apart and had rusty water in it. Gueman, thanks for advice, that solved the problem.
#1419 of 1493 Gas odor from under the hood
Jun 29, 2009 (6:43 am)
Last week, while on a trip, my wife and I noticed a strong gas odor coming from our 2005 Pontiac Montana. The odor is inconsistent: sometimes we notice it when the van is running; other times there is no odor at all when running. Then, we may notice it when the van is parked (not running), but again at other times, there is no odor while parked. So I took it to a mechanic who had it for several hours and couldn't find any leak nor noticed any odor. He started and restarted the van and even drove it a couple times. Nothing. There was no odor for 2-3 days, but then today, it was back and stronger than ever. If we notice it while driving, we simply pull over, turn the van off and then back on, and it usually disappears. What do we tell the mechanic to look for?