Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: EGR system clean. on 1993 Ford F-150 Lightning

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
i'm replacing my EGR valve,an it says on your web page tells me to clean the egr system.what do i use to clean egr system out with.an what do i clean.besides the ports.the ports is where the hole is when egr valve is pulled off correct.any answers you have will be greatly appreciated.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
I am assuming the vehicle you have has the 5.8L V-8. To replace the EGR valve on this is relatively easy and so is cleaning passages. The EGR valve has a small vacuum line attached at the top and a flexible metal tube threaded on to the bottom of the valve assembly. The valve is bolted to the intake manifold and when you remove the valve there is a large orifice exposed. That orifice gets restricted with coked up oil residue, clean any particles and goo out of the orifice you can. You can use carb cleaner to do so, but use it sparingly, too much can hydraulic the motor and cause damage. Be sure to clean the mating surface where the gasket goes as to prevent any leaks. Make sure there are no cracks in the metal tube to the EGR valve, they can split and cause and exhaust gas leak. After you replace the valve be sure to have the codes cleared, if you do have a scan tool to do so, disconnect the battery (with the key off) for a few minutes, then reconnect it, that should clear the codes. Good luck
Check out my other answer to you, that might hold the key to your fix. If you don't mind, please let me know what code was used to diagnose the EGR valve, it will help me help you if you know it.
Didn't find what you were looking for?