Having problems with your 2000 Pontiac Montana ?

2000 Pontiac Montana LWB will not start when hot. Engine will crank, but will not fire or will fire but will stall out after 5 seconds. After a 10-15 min. cooling period, engine will start with no problem.( Fuel gauge reading are sometimes wrong when near empty, but still have this starting problem when fuel tank is still above 1/2). Not sure if it is electrical or mechanical. Any help on how to diagnose would be appreciated.

Posted / edited by AnonymousUser on : 01-06-2020

Answers :

First with your incorrect fuel reading, you may need to have your fuel level sending unit replaced. Next if your vehicle otherwise runs fine when cold, no sputtering or hesitation if going uphill then I would suggest that your check your vehicle's air intake/induction system Mainly your air filter to see if it is clogged up which would impede air flow into your combustion chamber causing poor throttle response or suffication (not having enough oxygen for your fuel/air mixture to burn. Next I would have a thorough check performed on the emissions systems, also including your o2 sensor and possibly even your catalytic convertor and exhaust system. Start with that and let me know what your results are and I can advise you further if problems persist or worsen.
Repair Help & Product Troubleshooting for 2000 Pontiac Montana

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