20 Most Recent 2001 Pontiac Sunfire Questions & Answers

What kind of automatic transmission have you used?
You need the Dexron IV or higher grade.
See your automatic transmissions specifications in the owner's manual.

Hope it helps.

2001 Pontiac... | Answered on Oct 18, 2018

You can get a factory code from GM dealer to unlock the radio. They will tell you how to retrieve the 6 digits and they will phone for the factory code. Ask your GM Dealer. Hope it helps.

2001 Pontiac... | Answered on Oct 18, 2018

if you have two guides check and see if you got them on the right sides

2001 Pontiac... | Answered on Mar 10, 2018

The common problems with DRL system is wires open circuit near the windshield washer tank. The wiring harness to the headlights.

You have to find the wires that are in open circuit or corroded
hint : after removing the isolated tape pull each wire one at a time and you should find the open circuit
2001 sunfire drl diagram-h0fggjxckkhz5fthr3szmpks-3-0.gif hope it helps

2001 Pontiac... | Answered on Jan 18, 2018

When the light is on you need to pull the OBD codes with a code reader or go to an autopart store and have them do it. With that in mind ethanol changes the exhaust coming out of the engine, the ethanol causes the oxygen to be higher in the exhaust than is expected and the light comes on. You should have the codes checked to be sure. However there is no damage coming from this light, if that is the cause.

2001 Pontiac... | Answered on Dec 15, 2017

Seems like you might have a relay stuck (burned together).

2001 Pontiac... | Answered on Dec 02, 2017

No relay . Two fuse's . CLSTR 10 amp & BCM/CLU 10 amp . Both are located in the instrument panel fuse box . Maybe we can save you some trouble , what is the problem your have ? Gauges not working ?

2001 Pontiac... | Answered on Nov 24, 2017

they are all around the engine, 2 or 3 on each side (front wheel drive cars like yours the engine is sitting sideways) and sometimes one on the end but usually have to take the transmission off to access that one, they are just silver (if not rusted up) plugs that get tapped into the engine, to get them out just tap on one edge until it flips sideways and grab it with pliers or get screwdriver behind it. try not to let it fall inside the engine. Generally they are called frost plugs and they are to protect your engine from cracking in case water freezes inside of it but if you have good strong anti-freeze (glycol) in your rad that shouldnt' be an issue but worse than the frost plug popping out is cracking the radiator due to insufficient strength of your anti-freeze.\
A lot of cars now may have a block heater and this is inserted into a frost plug once removed and a bolt tightened, this is the weakest link usually and may leak, sometimes can be tightened but a block heater could be where your issue lies.

2001 Pontiac... | Answered on Nov 24, 2017

Sounds like you need a new switch ,but ,without testing that would be a guess . Using wiring diagrams an a DMM - digital multi-meter , plus knowledge of how automotive electrical system's work is how a professional auto tech would solve this problem .
Electric Testing Techniques You Need to Know
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
How to Use Multimeter to Troubleshoot Common Problems
Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter vehicle info. year , make , model an engine size . Under system click lighting ,then under subsystem click on headlamps . Click the search button then the blue link. Does the diagram look confusing ?

The Trainer 32 How To Read An Automotive Block Wiring Diagram

2001 Pontiac... | Answered on Nov 12, 2017

We had a car that we had to bypass the compressor but my mechanic said we could not do it so he disconnected all the lines on the compressor and hooked it up that way. No we did not have air conditioning but we drove the car that way for several years after that.

2001 Pontiac... | Answered on Jul 19, 2017

run the fault codes to find the problem servo/ solenoids

2001 Pontiac... | Answered on Jun 16, 2017

the 2001 sunfire does not have a fuel pump reset switch such as fords do what gm does have on most of ther cars and trucks is a fuel pump test lead thry can be most any weteunder hood ur looking for the single red wire usually takepes up has a blk single plug on the end of it send posiyive battery juice to it and ur pump should coe on if its good if cany find that pull ur fuel pump relay ck for power to relaywith key on if u have piwer to rlay swap with other relay next to it and see if pump comes on should run3secinds when key cycled if dont chances are its ur pump or the wiring on the top of pump they liked to burn out or corroded

2001 Pontiac... | Answered on May 14, 2017

Can you narrow it down a little? Any particular system where your having a problem?
I need more info?

I don't know what hoses your talking about? radiator hoses--heater hoses--vacuum lines, where applicable? Can you be more exact?

2001 Pontiac... | Answered on Feb 22, 2017

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