Thursday, November 18, 2010

How hard is it to change the fuel injectors on a 1989 cherokee 6L 4.0?

one of my injectors is leaking and I wonder how hard and teh steps to replace them. I have bought a six piece kit already.How hard is it to change the fuel injectors on a 1989 cherokee 6L 4.0?
Not too hard. First relieve the pressure on fuel rail.Next ,using the special tool which can be purchased from any good parts store, remove the fuel supply to the pressure regulator.Next pull off the horseshoe clips on each injector where the injector meets the rail. Next remove and MARK each of the electrical connections to the injectors. Next there are 4 bolts that hold the fuel rail to the manifold. They need to be removed. Next gently rock the fuel rail back and forth being very careful not to bend it and the rail and injectors will come out. Replace the leaking injectors and all the o-rings. Coat the o-rings with a few drops of ATF so that they will slide back in and re-assemble the fuel rail. Reverse everything you did to remove it and you should be good to go. Remember that each electrical injector plug must go to the injector it came off of.How hard is it to change the fuel injectors on a 1989 cherokee 6L 4.0?
Really easy!