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9Mar/104
Ford Ranger: How do I reset the computer for the check engine light?
Reader question: I recently replaced my EGR valve in my '95 Ford Ranger and yet the check engine light still comes on. I unhooked the battery cables for 15 minutes which caused the light to go off, but it came back on after about an hour of driving. What else is there to do?
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March 9th, 2010 - 17:11
Bring it to a machanic and have them reset the computers …or put electrical tape over it
March 9th, 2010 - 17:14
Since the light came back on, the EGR Valve either wasn’t the problem, or it wasn’t the only problem. Take the truck to Autozone and have them scan it to see what code you are getting.
March 9th, 2010 - 17:38
Well, since you’ve already installed the EGR valve you’ve puchased from Auto Zone, the option of returning the part for a refund is no longer viable. But, I would bet the farm your EGR valve WASN’T the problem. More likely it was the DPFE sensor that needed replaced, NOT the EGR valve. This sensor is either an aluminum bodied rectangular shaped sensor with two rubber hoses and a three wire electrical connector connected to it, or a black pastic sensor if it has already been replaced before. This is a VERY commonly failing part on ALL Ford products. You would need to purchase it from the Ford dealer parts department. Just ask for part number F77Z-9J460-AB at the counter to get the part you need. Hope this helps.
March 9th, 2010 - 17:51
Rather than guessing, take it to a trained technician and have it diagnosised properly. EGR valves arent common on ford products, but whats really common is the DPFE sensors for the egr. Very easy to diagnosis with a scan tool. ( if the problem was caused by the part you replaced, then I agree, it shouldn’t have come back on in the 1st place)