Question about 2001 Pontiac Sunfire

Open Question

My 2001 Sunfire gauges have been going out intermittently for months now. I've taken it to a shop and they couldn't determine anything. So far the following is what i've gathered personally. - All the gauges work intermittently. - Headlights so dim I cannot drive at night, but brighten when I brake. - If I put AC or heater on my gauges will go out immediately. - All my warning lights will come on as intermittent as the gauges. - Car runs and drives fine. - Check engine light stays on which has indicated a fuel system leak which new cap did not fix. Best we have come up with is a bad ground. I cleaned some grounding points and wires and the car does seem to start better, but problem persists. - New alternator - New Battery - Completely tune up I really don't want to spend more money shooting in the dark. Any ideas?

Posted by on

  • Jeffrey Turcotte
    Jeffrey Turcotte Oct 24, 2010

    it does sound like a ground issue, but maybe other problems too. Check the connector to the cluster for tightness. Problem may be in the body control module, but I don't know where that is on your car. Cannot explain headlights getting brighter when brakes applied.



6 Suggested Answers

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2000 pontiac sunfire

I had the same problem. Goodwrench looked at my car for 2 hours could not figure it out. Then they unpluged the body control module and plugged it back in and presto, problem solved.

Posted on Nov 27, 2008

  • 42 Answers

SOURCE: 04 pontiac sunfire battery light and panel lights dim

sounds like your alternator. if you have a multimeter then turn on your car and turn your headlights on/ac and heater fan on high/wipers on and blinkers on. once they are all on hook the meter to the battery and if it reads less then 14 volts then the alt is bad. or you can just take it to a shop and have it tested.

Posted on Mar 20, 2009

  • 2007 Answers

SOURCE: 2000 Sunfire

Check your battery cable connections on the battery, starter, and ground. Might be dirty loose or damaged.

Posted on Jun 19, 2009

  • 224 Answers

SOURCE: 2004 chrysler sebring 2.7L V6, the odometer dims/brightens

check your ground connections

Posted on Jul 20, 2009

  • 7353 Answers

SOURCE: brighten headlamp lense

Polishing the lenses is a temporary fix and doesnt last long, and then its worse than it was to begin with. You can try with some plastic polish and get them the best you can or replace the headlights, There are several companies on the net that you can purchase lights from, just google Cadillac Headlights and shop around. .Make sure they are dim because of the lens and not an electrical problem.

Posted on Nov 20, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Having trouble with 2001 chevy s10 pickup

With intermittent issues, you need to test when problem is ongoing or you can't find anything.
Are you losing fuel--spark--electrical? It could be almost anything.

Dec 09, 2015 | 2001 Chevrolet S-10

1 Answer

Fuse for fuel pump on 2001 pontiac sunfire

There are some logical steps need to be taken 1st. Verify if the engine has air, fuel and spark. Fuel can be checked with an inline gauge at the fuel rail. There could be several different things wrong. Bad ECM, fuel pump, injectors, fuel pressure regulator etc. Need to verify spark, this too may have several different problems. Bad ECM again, power/ground circuit faults, coil pack ect.

Jan 31, 2015 | 2001 Pontiac Sunfire

1 Answer

Two months ago I went through the car wash and my ebrake and battery lights started flashing intermittently heater blower losses strength when I accelerate and the headlights dim. Started idling crappy at...

it sounds like you have a bad ground. follow all your ground wires. should be one to the engine, body, and maybe frame. disconnect them and clean the surfaces with sand paper and reconnect

Jan 20, 2013 | Cars & Trucks

1 Answer

2001 Pontiac Sunfire 2.2L Overheating Issues

my first thought is the themostat but I would also check to make sure the cooling fan is coming on when engine gets warm if not could be relays for cooling fan

Dec 13, 2012 | 2001 Pontiac Sunfire

1 Answer

2001 chevy suburban fuel gauge stoped working

If the sending unit was connected and grounded, I would guess the gauge in the cluster is faulty.

Jul 09, 2012 | 2001 Chevrolet Suburban

1 Answer

Car wouldn't start this morning. Two days ago the light came on and after checking we determined it was the coolant. Checked that and it was low. We just filled it. We then tried to start the car...

As far as the battery size all the parts store needs is the make model and size engine,

and if its a top post or side post battery. that way they can match your car with the correct

battery. as far as the coolant problem, your car could be overheating, the thermostat may

not open when its supposed to. or you may just need a radiator flush. as far as your existing

battery, I would take it to an autoparts store where they can check it 1st, most autoparts

will not charge you for checking parts while you are there, unlike an automotive shop.

good luck!

Jun 25, 2011 | 1996 Pontiac Sunfire

1 Answer

Water"diappearing" from coolant leak

This is a common problem with the 1997 sunfire it probably is the head but before you go that far I would suggest doing a chemical test on it , your local mech shop can do this test for you ...

Jun 07, 2011 | 1997 Pontiac Sunfire

2 Answers

2005 pontiac sunfire

I have the same problem.. i installed a toggle switch for the fuse so at least I can reset it while driving.. its still a pain so Im thinking my next step will be to drill a hole through the plastic and put in a small metal post to stop the tach from going past 7

has anyone taken theirs into a shop?

Nov 28, 2008 | 2005 Pontiac Sunfire

1 Answer

Faulty speedometer

you need a new speed sensor,very common fault for it to affect the fuel gauge,,,,,,,,,,,,,,,dont steam clean anything that involves electrics !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Nov 07, 2008 | 2001 Volkswagen Golf

Not finding what you are looking for?
2001 Pontiac Sunfire Logo

Related Topics:

83 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

85206 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides