kennethcole79

hello i was wonder if the drive axle need to be removed to change out the fuel pump on a 2003 sl55. space is pretty tight but wis manual doesnt specify

cnterline

No you can sneak it out but get 2 clamping pliers to seal off the fuel hoses ,if your careful you can actually sneak it out of those clamps ,saves a lot of time if you can ,I sprayed WD40 on it and slid it out ,take both wheels off,I'm assuming you have access to a lift,change the filter also,the wires were a little bit of a pain ,use a mirror with a flashlight too,good luck

kennethcole79

thanks

Tankman

Just out of curiosity,can I ask why you are changing the fuel pump?

kennethcole79

tank

car sat for some months went to so start cranks but wont start. batteries are good. cps is good installed new one. i cant hear the fuel pump prime. check fuel pump relay and was good. have 1/2 tank of gas. spray some starter fluid in the intake and started up briefly. so figured it bad fuel pump or clogged fuel filter. ill change fuel filter fiirst just to make sure.

cnterline

It should make noise for a split second when you turne key forward,ck fuel pressure,and scan it if you can there is a fuse and relay

kennethcole79

didnt have fuel pressure gauge with me but did press shrader valve on the fuel rail nothing. i can here the click of the fuel pump relay and very very faint sound of the fuel pump sounds very weak. so my first fix will be drain fuel and replace fuel filter i know its got to be clogged and dirty cause car been sitting for almost a year now been overseas in the phillipines. if that doesnt work then ill replace the fuel pump.