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I'm talking about the smaller OHV engine. If you have the big engine, my remarks might not be relevant.
It's sort of a pain. You have to remove the serpentine belt to get the alternator off. Look for a routing diagram of the belt on the underside of your hood, or somewhere in the engine compartment. You absolutely need to know how it routes. If you don't have a diagram, make your own.
The belt is removed by relieving the tension on the tensioner. On my '96, it's located down and rearward from the alternator. It rotates forward to slack the belt.
The alternator has 3 bolts. Two are visible from the passenger side of the alternator. One is danged long! There is also one that's hidden on the driver's side, under sort of a bracket. You might have to feel for it. You sure as heck can't see it!
there are a couple of electrical connectors to unplug too. Take care with these. OH YEAH! Disconnect the battery before you start!
Once you have the old alt. off, the new goes on more or less the same way. The pain can be getting the belt back on. Get someone to help you. It's difficult to keep the belts on all the pulleys, as well as rotating the tensioner. While you have the belt off, check it for frays and cracks. If there are any, now is the time to replace it.
What else can I help you with?
How do you change the fuel filter and where is it located in a 2003 Pontiac Sunfire?
where is the fuel filter located on a 2003 Pontiac sunfire
Where is the crank position sensor located on a 2003 Pontiac Sunfire?
2003 sunfire
How do you replace the water pump on a 2003 pontiac sunfire?
To replace the water pump on a 2003 Pontiac Sunfire, first disconnect the negative battery cable and drain the coolant. Remove the serpentine belt, then detach the alternator and any other components obstructing access to the water pump. Unbolt the water pump from the engine block, clean the mating surfaces, and install the new pump with a new gasket. Finally, reassemble the components, refill the coolant, and reconnect the battery.
Does Pontiac 2003 sunfire has a timing belt?
No, it has a cam chain.
Is there a picture for replacing an alternator in a 2003 Pontiac Sunfire?
Pick up a Haynes or Chilton manual for your car. It will have all the photos and instructions you need. It's a pretty basic job.
How do you replace an alternator in a 2003 Pontiac aztek?
To replace the alternator you must tip the motor. by removing the motor mounts in front on the motor.just the two top ones and than roll the motor forward. that will give you enough room to remove the alternator
How many cylinders in a 2003 Pontiac sunfire 2 dr?
4
What is the correct tire pressure for a 2003 Pontiac sunfire?
30 to 35 psi
How do you replace an Alternator for a 2003 Pontiac Vibe?
To replace the alternator in a 2003 Pontiac Vibe, first disconnect the negative battery cable to ensure safety. Remove any components obstructing access to the alternator, such as the air intake duct or engine cover. Next, detach the electrical connections and loosen the serpentine belt using a belt tensioner tool, then remove the alternator bolts. Install the new alternator by reversing the removal steps, ensuring all connections are secure before reconnecting the battery.
What is the tire size for a 2003 Sunfire?
The 2003 Pontiac Sunfire came from the manufacturer equipped with 225 65R 15 tires. The back and the front tires were the same size.
How do you change a water pump on a 2003 Pontiac Sunfire?
Take it out and put a new one in!
How do you replace the socket of a rear running light on a 2003 Pontiac Sunfire?
you should be able to buy the pigtail either at a parts store or the dealer. Otherwise you can get one from a junkyard fairly cheap and replace the bad one.
