2000 Pontiac Sunfire: check engine light

Filed Jun 16, 2020 · Brakes, Fuel system · 160,000 miles · SC

My car was driving perfect until 3 weeks ago, it has since then wont start back up. Thought it was something to do with spark, then tried spark plug wires, new battery, checked alternator and fuses, coils all good. Then I was lead to maybe the gas that was in it. Dropped gas tank, put new fuel filter, checked fuel pump, gas lines, it did stay running one time since but was shaking roughly with a flashing check engine light. Will not run anymore since then. Have not been able to drive my vehicle for 3 weeks now and it is my only car.. Also before the car started having the above problems my brakes kept getting tons of air also losing a ton of brake fluid, ABS light stays on and all brake lines are good. It's dangerous. Also have bled the brakes. Not much help other than temporarily.

Filed Sep 28, 2004 · Brakes, Engine · 35,000 miles · NE

The consumer applied the brakes and the pedal went to the floor. The vehicle slowed down on its on. The consumer was able to control the vehicle. The driver was able to drive it to dealer. The mechanic informed the driver that the problem could not be duplicate. The engine light appeared on the dashboard and remained. *jb there was leaking boiling under the dash on both sides.

Filed Jun 9, 2004 · Fuel system · IL

I own a 2000 pontiac sunfire - purchased new. I had no problems until 2003 when my car would deccelerate for no reason while driving at any speed, hesitate while driving at any speed, or, after stopping at an intersection, simply would not allow acceleration. This has happened while trying to go through busy intersections. Very scary. One day in 2003 the car would not start, so I had it towed to a mechanic to research this problem. He replaced my fuel pump but the car was out of warranty, so I paid for this repair along with the tow. It did not take long for the problem to occur again. What is going on? I take good care of this vehicle and, if the fuel pump was the problem, this should not be happening again so soon. Second issue - early in 2004 I noticed the low coolant light coming on and off with no consistency. I checked the coolant reservoir and it was low. I added the proper coolant mixture but it didn't take long for the light to come on and off again - with no consistency. Shortly thereafter the check engine light was coming on and off. I again took it to my mechanic who reset something relating to the check engine light. But the very next day the light was on again. Now, it is always on. Please explain what is going on. I owe one more year on this vehicle and can't afford to have any major problems. The biggest issue is the hesitation and stalling of the car at anytime. There is no warning - it just happens. This is a disaster waiting to occur. My children ride in and drive this car. I don't need this worry on top of everything else. One more thing, about 1 year ago the air conditioner started malfunctioning. Not sure if it is related to the other complaints. It only works if you have the fan on the 3rd or 4th mark. If you put it on the 1st or 2nd mark, it will work (but not to capacity) only while the vehicle is moving. If you stop, it stops.

Filed Aug 7, 2003 · Brakes, Engine · 50,000 miles · PA

Car has had numerous problems since day one. Brakes chatter, overheating, service engine light, cd player and speakers did not work. Now it stalls with no warning at all. Stalls at 70 MPH going down highway. Has stalled while driving 3 or 4 times in the past two days. Checked out at service station on computer, and shows no problems. Have read many complaints here about the exact same problem. Bad fuel pump or something is causing car to stall. Then it takes from 10 to 15 minutes to start again. Some days it just won't start at all. Have had car checked many times, and no one can seem to find the problem. Anyone that can help here??? I think gmc owes many, many consumers an explanation and repair of this very serious and potentially dangerous problem!

Filed Apr 28, 2002 · Visibility · IL

Engine light always goes on and it is replaced constantly but still each new one comes on. My car is only 2 yrs. Old and I have replaced so many. Power windows work so slow and have repalced 2 already. Windshield washer delay hasnt worked.finally replaced.

Filed Feb 12, 2002 · Body, Brakes · PA

Exhaust system was replaced due to it getting hot melting the carpet and paint inside trunk, fumes filled interior of vehicle at this time exhaust system is running just as hot again, dealer stated factory representative instructed him not to do anything about the exhaust system, there was nothing that could be done.*ak consumer states the vehicle has bad gas mileage, starter motor seized and failed, power steering fluid was leaking, coolant was leaking from left front and back of the vehicle, replaced radiator, heater blows cold air at idle, trunk leaks, head lamp is out of adjustment, glove box will not close, muffler fell off, key comes out of ignition with vehicle running, transmission has no reverse, there was brake pulsation at high speed or when stopping, brake pedal goes to floor, speakers inoperative, seat spring failed, suspected motor oil smell and replaced thermostat, horn was inoperative, power and grounds distribution replaced, window will not go down all the way, found window regulator failed, hazard lamps and turn signal were inoperative, replaced blown fuse, cigarette lighter inoperative, replaced blown fuse, traction control inoperative, engine light comes on, A/C hose leaking, replaced evaporator, hard to start and rough idle, engine make rattling noise and quit running, replaced head cylinder and 02 sensor, vehicle pulls to the left, overflow bottle melted and 42 goodyear tires blew out, also the HVAC was inoperative.

Filed Apr 16, 2001 · Engine · TX

Vehicle stalls at any speed, and on daily basis. Taken vehicle numerous times to dealer, cannot remedy situation. *ak consumer states that prior to vehicle stalling, check engine light used to illuminate and then the air conditioner would quit, however now, vehicle will stall without any warning, this happens several times a day where it has almost caused several serious accidents.