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Re: I just would likke to know how many bolts/nuts secure...
Most cars have two - one to hold unit in place and the other on an arm that you can adjust the position and tighten the belt around the pulley to specs.
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abs not going to be the cause...possible passlock security system problem....does the security light flash rapidly when it wont start? it is common for the security system to act up on these vehicles
you could have a bad alternator not keeping the system at the appropriate level of charge. Or check the battery, replace with other known battery that is good and see if this fixes the problem. Clean all battery terminals. Dead shorts in battery can really create problems and sometimes can load test good but on the low side. Try the battery swap first if you have access to one
Detach the negative battery cable from the battery of the Pontiac Montana with an open end wrench and move the cable so that it is not touching any metal objects.
2Locate the alternator in the front of the engine on the passenger side of the engine compartment. The alternator will be on the top, side of the engine with a belt running to the crankshaft pulley.
3Unfasten the electrical wire connector from the alternator by using a socket wrench to undo the nut and take the electrical wire connector off the terminal.
4Loosen the bolts holding the alternator in place with a socket wrench just enough so that you can move the alternator on the bracket, and take the alternator belt off the pulley. Note: Do not remove the belt from the crankshaft pulley.
5Undo both bolts on the alternator with a socket wrench until you can remove the bolts completely and take the alternator out of the bracket, removing it entirely from the engine compartment.
6Position the new alternator in the bracket and slide the bolts back into place, tightening the bolts with a socket wrench until you can just barely slide the alternator on the bracket.
7Place the alternator belt around the alternator pulley and check the position of the belt around both the crankshaft and alternator pulleys to verify that it is seated properly.
8Place a crow bar between the alternator and engine block and pull back on the alternator with the bar to add tension to the belt.
9Tighten the bolts on the alternator with a socket wrench while you keep the tension on the alternator belt.
10Reattach the electrical wire connector to the alternator terminal by placing the connector and the nut on the terminal and securing with a socket wrench.
11Connect the negative battery cable to the battery of the Pontiac Montana with an open end wrench.
Yes the flashing light means the module did not read the chip in your key as being the right one for the van. Could be the key, the sensor in the lock cylinder, or the module.
Remove one 8mm bolt and loosen the other on the wiper linkage swing it out of the way remove the belt should have a square hole that a 3/8 rachet will fit. Take the one 15mm bolt out at bottom toward the front on van (horazontal) then two 15mm @ rear they r staggered and are vertical... One plug and one batt wire(13mm) n u should b out with it... Hope this helps!!!! Good luck!!!!
The alternator does come out from the top. You need to loosen the two motor mount on top of the radiator support and rock the engine forward and secure it. Then removed the windshield wiper module cover, and you should have access to get it out. I recommend for safety reasons, if you are not a experienced mechanic that you take the van somewhere for that service. When it comes to rocking engines and securing them, you are better off having a professional doing it for you. Thank you for using fixya and be safe.
I believe the Montana has a 3.4 Liter V6 Engine.
This thermostat is located under the exhaust "crossover" pipe that runs between both the front and rear cylinder heads. Divers side.
Remove the heat shields (10mm bolts) and then the nuts on the exhaust studs. (6 total)
Two bolts hold the T stat housing to the intake.
Open the engine hood and you'll see there is a plastic housing holding the head light ans side light to the frame. There are two wing nuts and one wing bolt holding it all together. Remove those and pull the headlight and side light housings out from the frame. You'll be able to access all of the lights now.
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