2003 Pontiac Sunfire Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Pontiac Sunfire

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2003 Pontiac Sunfire Problems

Check Engine Light Due to Gas Cap Issue

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

Check Engine Light Due to Engine Misfire

The ignition module or an ignition coil may fail causing an engine misfire, the Check Engine Light may or may not illuminate. Diagnoses will be required to determine the cause and needed repair.

Serpentine Belt Tensioner May Fail

The serpentine belt tensioner can fail; it may become noisy and/or the belt may jump off. Replacement of the failed tensioner will be necessary.

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2003 Pontiac Sunfire Recalls

Brake Lights and Turn Signals May Not Work

The brake lights and rear turn signals may stop working due to insufficient contact between the socket and bulb. Inoperative tail lamps may not communicate the driver's intentions, increasing the risk of a crash. If both tail lamps become inoperative, the cruise control will not engage. Dealers will inspect the rear lamp bulb socket assemblies and apply grease or replace them if needed. The recall began January 18, 2005. The GM recall number 04083.

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2003 Pontiac Sunfire Reviews

I have had my 2003 Sunfire since 2004, I bought it from Enterprise Car Rentals, I have had nothing major, my A/c Compressor went out in 2011 had it replaced, Breaks one or 2x's, runs fantastic, great gas millege 14mpg, my Power Window on passenger side has gone out 2x's once were both, now just passenger side motor. I am having the Crankshaft Seal replaced next week. Besides all these Transmi...
Always chasing your tail to figure whats wrong , eats fuel pumps because tank is thin. Ground wire on battery was junk because split coating for ground at battery box,corrosion. 5th fuel pump! only 55,000 miles bought new and dealer put coil pack on at 20,000, pcm is in the open and not sure why it stalling again!

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