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Found 4 results

  1. In this video we show the step by step process for changing the high pressure fuel pump on Cliff's 2014 Silverado with the 5.3L EcoTec V8. This issue is related to fault codes Powertrain P0172 and Powertrain P0175. The exact issue is fuel being blown past the HP fuel pumps seals and into the crank case which contaminates the motor oil. If left uncorrected, this can damage internal components as the oil will break down due to the fuel and lose its lubricating ability. ?? LINKS TO PURCHASE TOOLS & PARTS FEATURED BELOW?? A quick indicator that the fuel pump is likely at fault is a smell of fuel when removing the oil dipstick. The high pressure fuel pump failure was verified by a local dealer by monitoring the fuel trim levels. I was very surprised to find out this the high pressure fuel pump is not covered by the factory power train warranty. Especially since it is literally driven by the camshaft, directly affects the health of the motor, and the codes literally read "POWERTRAIN". GM really should get their act together since this appears to be such a common problem. Note that the fault code did clear itself after a few starts of the truck. Fortunately, this is a pretty straight forward job that only requires basic tools. The process showed in this video should be identical on 2014 through 2018 Silverados and Sierras with the 5.3L EcoTec V8 These steps should also be very similar to other GM models with the 5.3L, 6.0L, and 6.2L such as the Tahoe, Suburban, and Escalade. Try anything shown in this video at your own risk ?Parts HP Pressure Fuel Pump: https://amzn.to/2XnUq0g GM PN: 12697966 ACDelco PN: HPM1035 Note eight (x8) of these gaskets are required Intake Manifold Gaskets: https://amzn.to/2Y1hZJg GM PN: 12626354 Note: we did not need to remove the throttle body from the intake manifold during the install so this part was not required. I have listed it here because GM includes it in the recommend parts for this job. Throttle Body Gasket: https://amzn.to/2ITJRIW GM PN: 12632900 High Pressure Fuel Line: https://amzn.to/2XrsHf8 GM PN: 12677004 Unique Tools Needed Fuel Line Connector Removal Tool: https://amzn.to/2WTzN7J Flare Nut Wrench Set: https://amzn.to/2KrYqGT Thumb Driver: https://amzn.to/2FlZVlO
  2. My new 2021 RST 6.2 threw a P0172 this weekend so I wanted to get it in right away to have it looked at. Got to the service department when they opened and the porter came over and asked if I had an appointment to which I said no, unfortunately I have a check engine light on. He proceeded to tell me sorry sir, you have to have an appointment. To which I said, for a check engine light? He said yes, for anything….that’s the rule. So I politely asked him for the service manager and he came over. I told him I needed someone to look at my truck as it threw a code this weekend and he told me the same thing, we don’t do anything without an appointment. I asked how that is possible, I have a new vehicle that has an issue and I am supposed to be driving it on a trip tomorrow. He said they have 94 appointments today all booked up and there’s nothing he can do. If I was looking to have my oil changed or tires rotated, then yes an appointment makes sense but this is a check engine and not something that can be scheduled. I am flabbergasted that a service department won’t even take the time to read the code and see if there’s anything they can do on a nearly brand new vehicle.
  3. I have a 2003 Silverado 1500 with the 5.3 in it. For the past couple months the trucks been getting the p0172 and p0175 bank 1 and 2 running rich. I have clean the maf sensor and put a new air filter and spark plugs in and cleaned the pcv valve, throttlebody and map sensor too checked for leaks around the intake manifold and around the throttle body and found no leaks also put in new o2 sensors and the codes still come back up every time. Wondering if anyone else has had this problem or know what could be causing the codes? I’ll post a picture of the freeze frame data from the codes too.
  4. I have a 2006 gmc Sierra 1500 with the flex fuel 5.3l vortec. A few weeks ago I had a check engine light turn on for p0175 (system to rich bank 2), the light turned off the next day. now about 2 weeks later it turned back on with p0172 (same code except it is bank 1). Any Idea why my truck is throwing these codes, or what it might take to repair it? Any help is appreciated, thanks.
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