High Pressure Fuel Pump went bad
Thread Starter
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
High Pressure Fuel Pump went bad
About two weeks ago I started hearing a rattle coming from the bell housing area. I got the car up on a lift and probed around with a stethoscope thinking it was the flex plate with which others have had problems. I took it to a recommended dealer tech - in spite of the Edelbrock blower - to have it checked out. He identified it as the fuel pump but said the dealer won't let him work on it - on the clock. I knew warranty was out with the blower but it needed to be fixed. The sound was getting worse. It sounded like a wrench in an empty paint can on the shaker at Home Depot. I ended up getting the FPHP from Gene at Cultrag - my go to guy for parts. I had it the next morning.
Yesterday afternoon I dropped the car of at a local performance shop Broadview Automotive. John's a great guy and called me at 8:30 this morning to say he had a lot of work and came in early this morning to knock my car out. Total damage - $260 for the pump and $246 labor.
The car is now quiet again and I'm a happy camper.
Yesterday afternoon I dropped the car of at a local performance shop Broadview Automotive. John's a great guy and called me at 8:30 this morning to say he had a lot of work and came in early this morning to knock my car out. Total damage - $260 for the pump and $246 labor.
The car is now quiet again and I'm a happy camper.
I'm Batman..
Joined: Apr 2014
Posts: 6,143
Likes: 921
From: Lehigh Acres FL
Tech Contributor
About two weeks ago I started hearing a rattle coming from the bell housing area. I got the car up on a lift and probed around with a stethoscope thinking it was the flex plate with which others have had problems. I took it to a recommended dealer tech - in spite of the Edelbrock blower - to have it checked out. He identified it as the fuel pump but said the dealer won't let him work on it - on the clock. I knew warranty was out with the blower but it needed to be fixed. The sound was getting worse. It sounded like a wrench in an empty paint can on the shaker at Home Depot. I ended up getting the FPHP from Gene at Cultrag - my go to guy for parts. I had it the next morning.
Yesterday afternoon I dropped the car of at a local performance shop Broadview Automotive. John's a great guy and called me at 8:30 this morning to say he had a lot of work and came in early this morning to knock my car out. Total damage - $260 for the pump and $246 labor.
The car is now quiet again and I'm a happy camper.
Yesterday afternoon I dropped the car of at a local performance shop Broadview Automotive. John's a great guy and called me at 8:30 this morning to say he had a lot of work and came in early this morning to knock my car out. Total damage - $260 for the pump and $246 labor.
The car is now quiet again and I'm a happy camper.
Thread Starter
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
I'm Batman..
Joined: Apr 2014
Posts: 6,143
Likes: 921
From: Lehigh Acres FL
Tech Contributor
I'm Batman..
Joined: Apr 2014
Posts: 6,143
Likes: 921
From: Lehigh Acres FL
Tech Contributor
Which of the pumps are you saying is the same? Several people have already swapped out to the Z06 high pressure fuel pump because the stock LT1 pump only flows 2175psi and the Z06 pump flows 2900psi. It is providing higher psi for high HP applications. I believe the in tank pump was also different from all my readings. Is there another pump that I am missing? Perhaps a pump that is used to move fuel between the two tanks?
Premium Supporting Vendor
Joined: Nov 2006
Posts: 30,317
Likes: 165
From: Reading PA
Boys, I'm talking about the high pressure fuel pump.
For 2014 and 2015 LT1 and LT4 high pressure fuel pumps are the same.
For 2016 LT1 and LT4 are the same again, but a different part number for 2016.
So either way the pumps are the same between the two models, just have to figure out the difference between the two different part number pumps.
For 2014 and 2015 LT1 and LT4 high pressure fuel pumps are the same.
For 2016 LT1 and LT4 are the same again, but a different part number for 2016.
So either way the pumps are the same between the two models, just have to figure out the difference between the two different part number pumps.
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Pro
Joined: Oct 2014
Posts: 737
Likes: 15
From: oklahoma/arkansas
Yes there different. . Only the lt4 pump came available in 2015 model cars... yes there different calibrations. But only 2 different pumps. Lt1 and lt4
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
the fuel pump calibration for the LT1 also changed from 2014 to 2015.
and then the calibration for the LT1 and LT4 2015 pumps are different in some ways but do share some things.
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,643
From: Texas Hill Country
i swapped to a Z06 pump with a lash cap and Z06 injectors because I am going for 850+ rwhp on E85 and no meth.