2003 Pontiac Montana. Question = i just wanted to know how to change the rear brake light on my van.
JK: Open the rear hatch. Remove the 2 screws that hold either lamp assembly. Pop out the assembly. Disconnect the electrical connector from the circuit board on the back of the assembly, then remove screws in circuit board to remove board. Then pull out bad bulb.
Problem with my 2000 Pontiac Montana 3.4L.
Question = Why does my van not start when its cold or damp or when it sits for 8 hours or more but if i plug the van in with block heater it will start when it does start it run a little on the rough side until the engine warms up ,just wondering if it could be the temperature sensor let me know what you think thank you
JK: Hard starting when wet or damp outside is usually caused by corroded ignition coil towers and spark plug wires. Just pull them off one at a time and look for corrosion or rust on the coil tower and inside the plug wire. Plugged injectors are a common cause for running rough. Also the fuel pressure regulator leaking fuel into the vacuum line will cause a hard / no start and running rough, but damp weather would not make a difference.
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