I am getting a pinging noise over 2200rpms ,if you are towing a load it seems louder, a person said it was the lift pump, where a good place to purchase one and are there any secrets in changing one? thanks 1995 auto, cummins

 

I have read somwhere on this forum that if you use studs in place of the bolts it will make the job a piece of cake,i think it was Infidel that said that?If you do asearch on lift pump install that will direct you on how to do it.