reduced engine power
08-26-2017, 07:06 PM
#1
Member
Thread Starter
reduced engine power
i have the codes
p0087 fuel rail pressure to low
p0089 fuel pressure regulator performance
08 ss turbo
car has 57000 miles i think its the high pressure fuel pump within 8 miles of driving homei started hearing a little rattle. i got home n had someone rev it up while i poked around with a stethascope n it seems to be the high pressure pump. the usual ticking is extremely loud. are these symptoms synonymous with needing to replace the pump?
thx to anyone that helps i gotta new job n gotta have my car for it
p0087 fuel rail pressure to low
p0089 fuel pressure regulator performance
08 ss turbo
car has 57000 miles i think its the high pressure fuel pump within 8 miles of driving homei started hearing a little rattle. i got home n had someone rev it up while i poked around with a stethascope n it seems to be the high pressure pump. the usual ticking is extremely loud. are these symptoms synonymous with needing to replace the pump?
thx to anyone that helps i gotta new job n gotta have my car for it
08-29-2017, 05:13 PM
#2
First check the wiring I reference in this thread
https://www.cobaltss.net/forums/gene...-p0089-320825/
If that's no the issue then your high pressure pump is likely shot.
https://www.cobaltss.net/forums/gene...-p0089-320825/
If that's no the issue then your high pressure pump is likely shot.
08-29-2017, 06:04 PM
#3
Oh man.. It seems everyone encounters this problem... Same codes that I had last month. I first replaced the HPFP then it worked fine for about two weeks then the same stuff happened again.. So I then changed the pump in the tank and the car runs great now!! Been almost a good month. I totally just jinxed it though now
08-29-2017, 10:40 PM
#4
Member
Thread Starter
something right where the hpfp is is rattling pretty bad. i have 2 thoughts. either the spring broke or the roller broke. both are not good.. i wont know til my day off on saturday but il post back n hopefully neither the spring or roller broke but those r the only 2 mechanical parts on it as far as i know n whatevers fucked up it rattles more with more rpms... idk if u guys have any other thoughts lmk its driving me crazy.
08-30-2017, 06:39 PM
#5
Member
Thread Starter
looks like the plunger is stuck closed so the rattling must of been the roller goin back n forth n luckily nothings damaged 
the yellow wire rubbing the metal cover like was rubbed thrugh the wire insulation slightly. is their a chance i blew a fuse cuz of it? lol i checked the fuel pmp fuse under thehood n it has continuity jw if theirs one inside the car
the yellow wire rubbing the metal cover like was rubbed thrugh the wire insulation slightly. is their a chance i blew a fuse cuz of it? lol i checked the fuel pmp fuse under thehood n it has continuity jw if theirs one inside the car
Last edited by bahoodle; 08-30-2017 at 06:45 PM.
09-01-2017, 06:28 PM
#7
Member
Thread Starter
well the wires are fine continuity wise im jus waiting for the new pump atm im just gonna tape the wire up n put some heatshrink around it to try n protect it