20 Most Recent 2003 Pontiac Montana - Page 6 Questions & Answers

remove plastic cap on right wiper arm ,there is a nut on top of it and it's not tight. Before to tight it unscrew it put some treading lock fluid and tight the nut. Or there is a linkage unhooked. if the left side working than it is not the motor or transmission hope it helps

change the thermostat . its probably sticking closed once in a while

yes but with the right shaped wrenches and tiny hands it can be done without removing the exhaust crossover pipe

What you should do replaced module .This common Problem.That plate where coils goes.

Yes the parking lights are powered thru the headlight switch.

Check the tps and an air filter

either the sunroof drain is plugged if applicable or evaporator hose is plugged you can get the evap hose from under van it is on firewall

put in a radiator flush ,run it for 20 miles it can be a blocked core in both the radiator and the heater.that should clean it. then refill with a 50/50 mix anti freeze then bleed it of air. put your heater on full .run the engine on tick over.then push in the radiator hose to push the air out of the expansion bottle cap .it is off . then refit your cap.

it may be out of blinker fluid

Reset the PCM,by disconnecting the battery for a few minutes,the reconnect it.

move the HT lead / coil pack to a different cylinder to check for electrical fault. Move injector to a different cylinder to check for injector fault .Replace which ever shows as faulty when the misfire moves accordingly.

sounds like a head gasket issue, was the oil discoloured white in colour, bear in mind heat is caused by friction overheating will cause damage and possibly engine seizure.. which very expensive. unfortunatly a head gaket replacment is usually not cheap either as damage tothe metal also usually occurs when the gaket leaks.