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Well, it’s only been 7 months but I finally got around to changing my oil pump yesterday. I had also ordered a timing chain because going that far it was low hanging fruit, it had stretched and had an insane amount of play in it. Changing the pump and pickup has solved my pressure issue. The pickup o-ring was rock hard due to all of the heat cycles over the last 10 years and there was a very minimal amount of sludge and gunk in the oil pan when I got it pulled off. I was unable to perform an autopsy on the pump because the wife wanted me to get done with the job…
Yes, but it may be better to introduce the water thru a vacuum line like a brake booster hose, typically the MAF is before the throttle body and your engine would not operate correctly and not allow for the introduction of the water. Then there is also the matter if the throttle body is electronic I wouldn’t want to take the risk and get it wet.
I can’t answer if it’s got a drain plug but you can snake a hose down the fill tube and use a hand pump to remove excess fluid. That could prevent having to drop the pan.
Under taking an engine swap is a pretty large task. With that said upgrading to the 5.7 is a pretty good idea it’s a proven engine and it isn’t hard to find a quality rebuild/reman. What is your current mileage and status of your transmission. The 4l60E is standard for the 1/2ton GM trucks however they are prone to issues after high mileage especially when they have been running dexron III. Pending the mileage it may be wise to consider having the trans rebuilt or procuring a reman. Just food for though.
I knew I was walking into the lions cage with this post. I had planned to add a video with this post step show my issue. Yeah understand the pump does not create the pressure. My gut feel is that my pump is not moving the volume needed to create the pressure as this is an intermittent problem. With the external gauge not showing rapid fluctuations I’m lead to believe that either I’ve got a clog in my screen on my pickup tube, a worn out pressure relief spring, or now a bad O-ring from my pickup tube to pump. See the attached picture for my pressure reading at idle when this gremlin shows its ugly face. On more than one occasion it has displayed the low oil message and sang me the song of its people (warning chimes).
I agree with College man, pressure test the cooling system, when doing so make sure to check the back of the engine around the starter and where it meets with the trans. If you come up with a leak you can not see very clearly and it appears to be under the intake manifold you will need to examine the cooler lines that run on top of the valley and around the throttle body. If the leak is hard to locate the origin use a block tester to check for combustion gases in the coolant, this will tell you if its the head gasket.
I agree with College man, pressure test the cooling system, when doing so make sure to check the back of the engine around the starter and where it meets with the trans. If you come up with a leak you can not see very clearly and it appears to be under the intake manifold you will need to examine the cooler lines that run on top of the valley and around the throttle body. If the leak is hard to locate the origin use a block tester to check for combustion gases in the coolant, this will tell you if its the head gasket.
I will probably end up doing this myself, my hope in calling dealers for quotes was that I could hopefully find this service on special. I am also still a little gunshy when it comes to a new repair on this car after learning the hard way about the ford 3 valve spark plug issue. If you don’t know anything about it Google for 3 valve TSB, and prepaid to be entertained, seriously all it is missing is the Benny Hill music.
I know the risk of the dealer trying for the up sell and telling me everything is broken, however the multi point inspections they perform are invaluable to me because it shows me what I get to fix next. I have no issue telling the dealer no I do not wish to have that serivce performed at this time. Then I just take there little worksheet home and start making my parts list, and clearing out a Saturday to get the job done.
I guess my real frustration with my initial post was the lack of customer service, all three service writers sounded and acted annoyed when I called for the quote.
I will probably end up doing this myself, my hope in calling dealers for quotes was that I could hopefully find this service on special. I am also still a little gunshy when it comes to a new repair on this car after learning the hard way about the ford 3 valve spark plug issue. If you don’t know anything about it Google for 3 valve TSB, and prepaid to be entertained, seriously all it is missing is the Benny Hill music.
I know the risk of the dealer trying for the up sell and telling me everything is broken, however the multi point inspections they perform are invaluable to me because it shows me what I get to fix next. I have no issue telling the dealer no I do not wish to have that serivce performed at this time. Then I just take there little worksheet home and start making my parts list, and clearing out a Saturday to get the job done.
I guess my real frustration with my initial post was the lack of customer service, all three service writers sounded and acted annoyed when I called for the quote.
I am the original owner of a 2005 GMC Sierra purchased with 44 miles on the odometer. I currently have over 262k, this was my first new vehicle purchase and it was all mine. Sadly I lost my transmission at 120k. That alone was a hard day, here I had this beautiful truck and facing a $3000 repair bill. I briefly kicked around the idea of trading it in and starting all over…. Then I remembered how much the payments sucked and since it was paid for I chose for the repair. I am a true believer in pride of ownership and love this truck dearly. Thanks to you Eric I have the gumption to make repairs I never dreamed were possible. At 250k I opted to replace my entire front suspension including my rack & pinion to save my investment on tires I ran into an issue with severe feathering linked to worn out joints. Hopefully my truck will hold together for many more years but I dread the day when I will have to put her out to pasture. Thank you for everything you do, because of what you teach I have gained the knowledge to make repairs and on the things I lack the skill of or special tools I’ve also learned how to be a great customer and let the professional technicians do their jobs to get me back on the road.
I am the original owner of a 2005 GMC Sierra purchased with 44 miles on the odometer. I currently have over 262k, this was my first new vehicle purchase and it was all mine. Sadly I lost my transmission at 120k. That alone was a hard day, here I had this beautiful truck and facing a $3000 repair bill. I briefly kicked around the idea of trading it in and starting all over…. Then I remembered how much the payments sucked and since it was paid for I chose for the repair. I am a true believer in pride of ownership and love this truck dearly. Thanks to you Eric I have the gumption to make repairs I never dreamed were possible. At 250k I opted to replace my entire front suspension including my rack & pinion to save my investment on tires I ran into an issue with severe feathering linked to worn out joints. Hopefully my truck will hold together for many more years but I dread the day when I will have to put her out to pasture. Thank you for everything you do, because of what you teach I have gained the knowledge to make repairs and on the things I lack the skill of or special tools I’ve also learned how to be a great customer and let the professional technicians do their jobs to get me back on the road.
Have you checked the fuel system pressure? Also I believe that there is a potential head issue based on the cast numbers.
Have you checked the fuel system pressure? Also I believe that there is a potential head issue based on the cast numbers.
Pressure test revealed that the engine side of the lower radiator hose had been poorly clamped :whistle: ….. I adjusted the hose and reclamped slightly tighter & now the system is holding pressure and no other leaks have been detected….. The size of the leak was very small and where the coolant was discharging explains why I was never able to locate drips or puddles. Thank you very much for your input, you diagnostic questions got me thinking outside the box. banana:
Pressure test revealed that the engine side of the lower radiator hose had been poorly clamped :whistle: ….. I adjusted the hose and reclamped slightly tighter & now the system is holding pressure and no other leaks have been detected….. The size of the leak was very small and where the coolant was discharging explains why I was never able to locate drips or puddles. Thank you very much for your input, you diagnostic questions got me thinking outside the box. banana:
