View Full Version : diagnostic help 2003 ford ranger


thunderranger8
Jun 03 2007, 10:14am
I have a 2003 Ford Ranger 3 L engine that is not going above 40 to 45 mph without the engine struggling. The check engine light is also on and off.

csvt_33
Jun 03 2007, 10:49am
Get your CEL codes pulled(Free at Autozone, AAP, Etc.). That will help the troubleshooting process.

thunderranger8
Jun 03 2007, 11:47am
cel code 4 however the mass air flow sensor was changed