Disclaimer
The community here at 355nation.net urges you to please use caution and seek professional assistance when performing modifications to your vehicle. Before attempting any modification it is advised that you refer to your Colorado or Canyon service manual or contact a certified mechanic as not all GMT355 trucks are the same. The staff and the associated members are in no way responsible for any damages, injuries or other harm inflicted to your vehicle or yourself which may result in attempting these modifications. The posts and content presented on this site reflect in no way the views of 355nation.net or it’s ownership.
![Image]()
A 355nation How To presented by
slicksteveo13
Project Name
How to Install Fuel Pressure Regulator
Project Description
Removing and replacing stock fuel pressure regulator
Skill Level
Easy
Project Vehicle
Make: GMC
Model: Canyon
Year: 2005
Engine: 3.5L
Power windows: Yes
Sun Roof: No
Tools Needed
Socket Wrench
Socket Extension
T30 torque socket
Rag
Project Time
30 Minutes or less
Project Cost
$50-$80 Fuel Pressure Regulator
GM Part #: 88984221 or ACDelco #217-1564
The Fuel Pressure Regulator is located on the front drivers side of the engine. The easiest way to find it is to follow the small vacuum hose from the intake to the top of the regulator (see the picture below). The part circled is the fuel pressure regulator found on '04 and '05 trucks. Starting in '06, GM started using a returnless fuel system and newer engines don't have this part.
![Image]()
I had been smelling gas in the cab in the morning on cold days and throughout the day depending on the temperature. I drove it one day and could really smell gas in the cab of the truck so I stopped and opened the hood and the fuel pressure regulator was cover in fuel.
This is what mine looked like (didn't get a picture of it covered in gas):
![Image]()
or like this (with credits from xkmacx86)
![Image]()
A way to test the fuel pressure regulator is to remove the hose from the top of the regulator that connects to the intake and start the truck and see if fuel is coming out of the top of the regulator. When you remove the hose and there is fuel in the hose the regulator is bad as well.
I bought a new regulator at NAPA for about $60.
![Image]()
Then I used a T30 Torque bit to remove the two bolts holding the regulator in.
Remove the lower hose (the one with the bracket, first) watch when you disconnect the hose as gas will leak out.
![Image]()
Then pull the regulator out, watch out for gas coming out on this one as there is pressure behind the regulator. You can put a rag around the regulator so the gas does not spray every where.
![Image]()
To install the new fuel pressure regulator the reverse of removal.
![Image]()
![Image]()
This fixed my issue with lack of power. When I step on the gas the truck gets up and goes again as well as no more gas smell in the morning
The community here at 355nation.net urges you to please use caution and seek professional assistance when performing modifications to your vehicle. Before attempting any modification it is advised that you refer to your Colorado or Canyon service manual or contact a certified mechanic as not all GMT355 trucks are the same. The staff and the associated members are in no way responsible for any damages, injuries or other harm inflicted to your vehicle or yourself which may result in attempting these modifications. The posts and content presented on this site reflect in no way the views of 355nation.net or it’s ownership.
A 355nation How To presented by
slicksteveo13
Project Name
How to Install Fuel Pressure Regulator
Project Description
Removing and replacing stock fuel pressure regulator
Skill Level
Easy
Project Vehicle
Make: GMC
Model: Canyon
Year: 2005
Engine: 3.5L
Power windows: Yes
Sun Roof: No
Tools Needed
Socket Wrench
Socket Extension
T30 torque socket
Rag
Project Time
30 Minutes or less
Project Cost
$50-$80 Fuel Pressure Regulator
GM Part #: 88984221 or ACDelco #217-1564
The Fuel Pressure Regulator is located on the front drivers side of the engine. The easiest way to find it is to follow the small vacuum hose from the intake to the top of the regulator (see the picture below). The part circled is the fuel pressure regulator found on '04 and '05 trucks. Starting in '06, GM started using a returnless fuel system and newer engines don't have this part.
I had been smelling gas in the cab in the morning on cold days and throughout the day depending on the temperature. I drove it one day and could really smell gas in the cab of the truck so I stopped and opened the hood and the fuel pressure regulator was cover in fuel.
This is what mine looked like (didn't get a picture of it covered in gas):
or like this (with credits from xkmacx86)
A way to test the fuel pressure regulator is to remove the hose from the top of the regulator that connects to the intake and start the truck and see if fuel is coming out of the top of the regulator. When you remove the hose and there is fuel in the hose the regulator is bad as well.
I bought a new regulator at NAPA for about $60.
Warning: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
Then I used a T30 Torque bit to remove the two bolts holding the regulator in.
Remove the lower hose (the one with the bracket, first) watch when you disconnect the hose as gas will leak out.
Then pull the regulator out, watch out for gas coming out on this one as there is pressure behind the regulator. You can put a rag around the regulator so the gas does not spray every where.
Caution: Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:
• The fuel pipe connections
• The hose connections
• The areas surrounding the connections
• The fuel pipe connections
• The hose connections
• The areas surrounding the connections
To install the new fuel pressure regulator the reverse of removal.
Torque Specs: Fuel Pressure Regulator Screw: 71 lb in
This fixed my issue with lack of power. When I step on the gas the truck gets up and goes again as well as no more gas smell in the morning
