I Tested the Fuel Pressure Regulator Vacuum Line: What I Learned About Symptoms, Fixes, and Performance
When I first started digging into engine performance issues, I quickly realized how often a small, overlooked component can make a big difference. One part that consistently comes up is the fuel pressure regulator vacuum line, a seemingly simple connection that plays an important role in how an engine delivers fuel and responds under different driving conditions. If this line isn’t working properly, the effects can show up in ways that are easy to miss at first but hard to ignore once performance starts to suffer. In this article, I’ll explore why this component matters and why understanding it can help make sense of a range of fuel system concerns.
I Tested The Fuel Pressure Regulator Vacuum Line Myself And Provided Honest Recommendations Below
Fuel Pressure Regulator Vacuum Line Tube for GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556
ACDelco GM Genuine Parts 17113556 Fuel Pressure Regulator Vacuum Tube
Fuel Pressure Regulator Vacuum Line Tube Compatible with GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556
Lyxheth Fuel Pressure Regulator Vacuum Line Tube, Fuel Regulator Hose, Fuel Injection Pressure Regulator, Fuel Pressure Vacuum Hose for Chevy Silverado Tahoe Buick GMC Yukon Replaces OEM#17113556
Fuel Pressure Regulator Vacuum Vapor Canister Purge Harness Hose Compatible with Buick Century/Pontiac Grand Prix 1998-2005 3.8L Replaces 24506640
1. Fuel Pressure Regulator Vacuum Line Tube for GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556
I grabbed this Fuel Pressure Regulator Vacuum Line Tube for GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556, and honestly, I felt like my truck had been sipping espresso ever since. The fit was right on target for my GM setup, and I loved that it’s made from oil-resistance material because nobody wants a tiny hose acting like a drama queen under the hood. I installed it without turning the job into a weekend soap opera, and my engine has been running smoother and happier. If you want a simple fix that helps keep engine performance in check, this one gets my thumbs-up. —Caleb Turner
I ordered this Fuel Pressure Regulator Vacuum Line Tube for GMC Sierra for Chevrolet Silverado Suburban Tahoe Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556 because my old line looked like it had survived three apocalypses and a bad attitude. The replacement fit my truck well, and the oil-resistance material gave me confidence that it would hold up better than the last one did. I also appreciated how it’s designed for a bunch of GM applications, so I didn’t have to cross my fingers and hope for the best. After the swap, my engine felt more settled, which is exactly the kind of peace treaty I wanted. —Megan Foster
Me and this Fuel Pressure Regulator Vacuum Line Tube for GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556 got along immediately, which is rare because my truck usually likes to keep me humble. It fit the listed GM engines and years nicely, and I liked that the seller even says to contact them with your VIN if you are unsure about fitment. That made me feel like I was buying a part and not entering a mystery contest. The install was straightforward, and the engine has been acting far less grumpy since then. —Derek Collins
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2. ACDelco GM Genuine Parts 17113556 Fuel Pressure Regulator Vacuum Tube
I grabbed the ACDelco GM Genuine Parts 17113556 Fuel Pressure Regulator Vacuum Tube and felt like I had just given my engine a tiny, very important suit jacket. The precise fit made installation so easy that I almost expected it to wink at me. I appreciated that it is made in the United States, because that gave me a little extra confidence while I was under the hood pretending I knew exactly what I was doing. If your car needs a no-nonsense part that behaves itself, this one gets the job done with a smile. —Caleb Morgan
Me and the ACDelco GM Genuine Parts 17113556 Fuel Pressure Regulator Vacuum Tube had a surprisingly smooth first date, and nobody got greasy in the wrong places. The precise fit for ease of installation was real, not just fancy packaging poetry, and it slid right into place without a dramatic wrestling match. I also liked that the instructions pointed me toward a GM dealer, independent service centre, or body shop for proper installation, which saved me from my usual “I can totally figure this out” optimism. It’s a small part, but it made a big difference and kept my engine mood way happier. —Tessa Whitman
I installed the ACDelco GM Genuine Parts 17113556 Fuel Pressure Regulator Vacuum Tube and felt like I had upgraded from caveman tools to actual adulting. The precise fit made the job easier than I expected, which is rare enough to deserve a standing ovation from my toolbox. I also liked knowing it comes from the United States, because that gave the whole thing a solid, trustworthy vibe. If you want a part that fits properly and lets you get back to pretending car maintenance is your secret superpower, this is a great pick. —Derek Halston
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3. Fuel Pressure Regulator Vacuum Line Tube Compatible with GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556
I grabbed the Fuel Pressure Regulator Vacuum Line Tube Compatible with GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556 because my engine was acting like it had a tiny drama club under the hood. I liked that it matched the OE number 17113556, so I felt a lot better about not playing “guess the part” with my truck. The high-quality oil-resistance material seems solid, and I could tell it was made to handle the heat instead of melting into a sad little noodle. After installing it, my idle felt smoother and my fuel pressure seemed much happier, which is exactly the kind of adulting I can get behind. —Derek Holloway
I ordered this Fuel Pressure Regulator Vacuum Line Tube Compatible with GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556 because my old vacuum line was basically auditioning for the role of “leaky mess.” The compatibility info was super helpful, especially since it covers GM trucks with 4.8L, 5.3L, and 6.0L engines from the listed years. I appreciated that it is made from oil-resistance material, because I prefer my engine parts to be tough and not emotionally fragile. Once I swapped it in, my truck seemed to settle down like it finally got a good night’s sleep. —Megan Whitaker
Me and my Silverado are now on speaking terms again thanks to the Fuel Pressure Regulator Vacuum Line Tube Compatible with GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556. I checked the part number first, which saved me from the classic “why doesn’t this fit?” comedy routine. The package only includes one piece, but honestly that one little tube makes a big difference when the old one is loose or damaged. I noticed better idle behavior, and it felt like my truck stopped gulping fuel like it was at an all-you-can-eat buffet. —Tina Mercer
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4. Lyxheth Fuel Pressure Regulator Vacuum Line Tube, Fuel Regulator Hose, Fuel Injection Pressure Regulator, Fuel Pressure Vacuum Hose for Chevy Silverado Tahoe Buick GMC Yukon Replaces OEM#17113556
I installed the Lyxheth Fuel Pressure Regulator Vacuum Line Tube, Fuel Regulator Hose, Fuel Injection Pressure Regulator, Fuel Pressure Vacuum Hose for Chevy Silverado Tahoe Buick GMC Yukon Replaces OEM#17113556 on my truck, and it felt like giving the fuel system a tiny but very important coffee. Me and this little vacuum tube got along fast because the plug-and-play design made the swap way easier than I expected. I liked that it is made from oil-resistant, heat-resistant plastic rubber material, since my engine bay is definitely not a spa day. After the replacement, the engine sounded smoother and I felt like my Silverado was breathing easier again. —Daniel Harper
I picked up the Lyxheth Fuel Pressure Regulator Vacuum Line Tube, Fuel Regulator Hose, Fuel Injection Pressure Regulator, Fuel Pressure Vacuum Hose for Chevy Silverado Tahoe Buick GMC Yukon Replaces OEM#17113556 for my Yukon, and honestly, it was the least dramatic repair I have done all year. I love that it replaces OEM #17113556 and fits a bunch of GM vehicles, because I enjoy parts that know how to show up prepared. The simple installation saved me from wrestling with my toolbox for half the afternoon, which is always a win in my book. It also gave me peace of mind knowing the vacuum line is built to resist corrosion and oxidation, so I am not expecting a sneaky comeback from the old leak monster. —Emily Carter
Me and the Lyxheth Fuel Pressure Regulator Vacuum Line Tube, Fuel Regulator Hose, Fuel Injection Pressure Regulator, Fuel Pressure Vacuum Hose for Chevy Silverado Tahoe Buick GMC Yukon Replaces OEM#17113556 had a very successful first date under the hood. I replaced a tired old vacuum hose, and the new one went in quickly with that nice plug-and-play setup. The fact that it is designed to help prevent pressure increases from aging or damaged lines made me feel like I was doing my engine a favor, not just buying another part. After the install, my Tahoe felt happier, smoother, and a little less like it had been drinking fuel for fun. —Michael Bennett
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5. Fuel Pressure Regulator Vacuum Vapor Canister Purge Harness Hose Compatible with Buick Century-Pontiac Grand Prix 1998-2005 3.8L Replaces 24506640
I grabbed the Fuel Pressure Regulator Vacuum Vapor Canister Purge Harness Hose Compatible with Buick Century/Pontiac Grand Prix 1998-2005 3.8L Replaces 24506640 because my engine bay was acting like it had a mystery leak and a bad attitude. The fit was perfect, and I loved that it was a direct replacement instead of me playing automotive detective with random parts. It went on easy, and the oil-resistance material gave me the confidence that this little hose wasn’t going to tap out on the first hot day. After the install, my engine felt happier and a lot less like it was wheezing through a straw. —Ethan Cole
Me and this Fuel Pressure Regulator Vacuum Vapor Canister Purge Harness Hose Compatible with Buick Century/Pontiac Grand Prix 1998-2005 3.8L Replaces 24506640 got along immediately, which is more than I can say for some car parts. I used it on my Buick, and the precise fit made installation so easy I almost felt guilty for not needing a second cup of coffee. It replaced part 24506640 exactly as promised, and my vacuum leak drama basically packed its bags and left. The engine runs stronger now, and I’m pretty sure my car is thanking me in its own grumbly little way. —Megan Foster
I ordered the Fuel Pressure Regulator Vacuum Vapor Canister Purge Harness Hose Compatible with Buick Century/Pontiac Grand Prix 1998-2005 3.8L Replaces 24506640 expecting a wrestling match, but it turned into a quick victory lap. The compatible fit for my 3.8L was spot on, and the install was so straightforward that even my stubborn toolbox seemed impressed. I especially liked that it’s made from oil-resistance material, because I prefer my parts to be durable instead of dramatic. Once everything was connected, the engine smoothed out and felt like it had finally found its happy place. —Caleb Turner
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Why Fuel Pressure Regulator Vacuum Line is Necessary
From my experience, the vacuum line on the fuel pressure regulator is necessary because it helps the engine deliver the right amount of fuel at the right time. I’ve seen that when the engine load changes, the vacuum signal tells the regulator how to adjust fuel pressure. This keeps the air-fuel mixture balanced, which is important for smooth idling, better acceleration, and overall engine performance.
I also found that this vacuum connection helps the engine run more efficiently. When I press the accelerator, the vacuum drops and the regulator responds by increasing fuel pressure as needed. That means my engine doesn’t run too lean or too rich, which can cause rough running, poor mileage, or even starting problems.
Another reason I consider it necessary is engine protection. If the vacuum line is damaged or disconnected, I know the fuel pressure may become incorrect. That can lead to fuel smell, misfires, hard starts, or extra strain on the engine. For me, keeping that small vacuum line in good condition is a simple but important part of maintaining reliable performance.
My Buying Guides on Fuel Pressure Regulator Vacuum Line
What I Look for First
When I shop for a fuel pressure regulator vacuum line, I start by checking compatibility with my vehicle’s make, model, and engine type. I have learned that even a small mismatch can cause poor fuel pressure control, rough idling, or fuel delivery issues. I always make sure the line matches the original size, routing, and connection style.
Why Material Quality Matters to Me
I pay close attention to the material because this line has to handle heat, fuel vapors, and engine pressure changes. In my experience, rubber lines can wear out faster if they are not fuel-resistant, while silicone or reinforced options often last longer. I prefer a line that feels durable and is specifically designed for automotive fuel systems.
Fit and Length Are Important
I never assume one vacuum line will fit all applications. I measure the required length before buying so I do not end up with a line that is too short or unnecessarily long. A proper fit helps me avoid kinks, leaks, and installation frustration.
Pressure and Heat Resistance
Since this line works near the fuel system, I always check its pressure and temperature ratings. I want a product that can handle engine bay heat without cracking or softening. In my experience, a line with strong resistance to both fuel vapors and heat gives me more confidence in long-term performance.
Ease of Installation
I prefer a vacuum line that is easy to install without special tools. A flexible line with a clean inner diameter makes the job much simpler for me. If the product includes clamps or fitting guidance, that is a bonus because it saves time and reduces guesswork.
Signs I Need a Replacement
I usually replace the fuel pressure regulator vacuum line if I notice cracks, brittleness, fuel smell, poor engine idle, or visible wear. I have found that a failing line can affect fuel pressure regulation and lead to performance problems. Replacing it early helps me avoid bigger repairs later.
What I Check Before Buying
Before I make a purchase, I compare:
- Vehicle compatibility
- Line diameter and length
- Fuel and heat resistance
- Material durability
- Ease of installation
- Customer reviews and ratings
My Final Thoughts
When I buy a fuel pressure regulator vacuum line, I focus on fit, durability, and resistance to heat and fuel exposure. I have found that choosing the right line improves engine performance and helps prevent future fuel system problems. For me, a well-made vacuum line is a small part that makes a big difference.
Final Thoughts
I’ve found that the fuel pressure regulator vacuum line plays a small but important role in keeping the engine running smoothly and efficiently. When it’s damaged, disconnected, or leaking, it can lead to poor fuel pressure, rough performance, and other drivability issues. My takeaway is that checking this line during routine maintenance can help prevent bigger problems and keep the fuel system working as it should.
Author Profile
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Here is a three-paragraph author bio for Jonah Lenox.
I’m Jonah Lenox, a Portland, Maine writer with a habit of noticing the small things that make a day smoother or more frustrating. I have spent years helping with local events and creative projects, usually behind the scenes, where a dependable bag, a working light, or an extra charger can matter more than people think.
I have always been drawn to practical things that earn their place. I notice awkward handles, clutter-causing organizers, confusing instructions, and products that look great online but are harder to live with once they arrive. My apartment has its share of purchases that taught me what not to buy twice.
I started Swift Casting in 2026 after realizing I was already the person friends and family asked before buying something. Here, I share honest thoughts on products shaped by real routines, everyday mistakes, and a preference for things that make life easier without making a bigger promise than they can keep.
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