FAQs
There are several signs that indicate your fuel pump may be failing. These symptoms include:
- Difficulty starting the vehicle
- A loud whining sound when the engine is running
- Surging or hesitation at constant speeds
- A loss of power while accelerating
If you notice any of these warning signs, it might be time for a fuel pump replacement. For more details, visit our guide on diagnosing a bad fuel pump, or consult a mechanic for a professional evaluation.
There are several signs that indicate your fuel pump may be failing. These symptoms include:
- Difficulty starting the vehicle
- A loud whining sound when the engine is running
- Surging or hesitation at constant speeds
- A loss of power while accelerating
If you notice any of these warning signs, it might be time for a fuel pump replacement. For more details, visit our guide on diagnosing a bad fuel pump, or consult a mechanic for a professional evaluation.
Shipping & Returns
At Quantum Fuel Systems, we value your satisfaction and want to ensure a smooth return process. You have a 30-day window to initiate a return from the date of purchase, but please note that all returns are subject to a 15% restocking fee. To begin a return, please use our Contact Us page, include your order number and a brief explanation of the reason for the return.
Please be aware that our payment processor locks transactions after 180 days, after this period we cannot issue a refund and may only issue store credit in special circumstances.
While we do offer the option to exchange products, be aware that extra charges may apply depending on the specifics of the exchange. Quantum Fuel Systems reserves the right to refuse any return or exchange requests that do not meet our established return policy criteria. If your return is approved, we will provide detailed instructions for the return process. Please adhere to these instructions diligently, as products returned without prior approval will not be accepted, and we will not be responsible for any associated costs.
Once the returned item reaches our facility, we aim to process returns within 2 business days. Please allow up to 10 business days for the refund to be processed, which may vary based on your payment method and financial institution.
At Quantum Fuel Systems, we understand the importance of timely refunds and strive to ensure a seamless experience for our customers. If you haven't received your refund within 10 business days after initiating the return process, we recommend contacting your financial institution promptly. In the event that you have closed the card or account used for the original transaction, it's essential to reach out to your bank to determine where the funds will be rerouted.
Please note that Quantum Fuel Systems does not issue checks for refunds. However, in cases where all efforts to resolve the issue with your bank have been exhausted, we may consider issuing the refund via PayPal as an alternative method.
If your bank has rejected a refund that Quantum Fuel Systems processed, we are unable to reattempt the refund until the block from your bank has been cleared. We appreciate your patience and cooperation in such circumstances as we work to resolve any issues efficiently.
It's important to note that Quantum Fuel Systems is not responsible for repair costs, towing costs, or storage costs related to a failed part. Your satisfaction is of utmost importance to us, and we are here to assist you with any questions or concerns you may have regarding our return policy.
We offer free shipping to U.S. addresses for orders over $70.The free shipping method will be determined by the weight and quantity of the items in the order.
Our standard shipping time within the U.S. is 2-7 business days.
For international orders, expect a shipping time of 7-10 business days. The exact delivery time will depend on the customs process in the destination country.
Shipping fees, if applicable, will be calculated and displayed at checkout. Please note that delivery times may vary depending on your location and the time of year.
Once your order has been placed and processed, you will receive a confirmation email with your order details.
All orders placed before 2:00 PM PST will ship same day. Once your order has shipped, you will a shipment confirmation email, this email will include a tracking number and a link to our tracking page.
Click on the tracking number link or enter the tracking number into our tracking page.
Tracking information may not be immediately available after your order is placed. It can take up to 4 hours for the number to become active in our system. If you don't see any updates right away, please be patient and check back later.
Contact our customer service team at (818) 574-3835. Please include your order number and the reason for cancellation in your message.
Orders can only be canceled before they have been shipped. If your order has already been shipped, please refer to our return policy for further instructions.
Please be advised that we are closed on Saturdays and Sundays. Kindly send us an email at [email protected] with your order number and the reason for cancellation. We will respond to you on the following Monday. Thank you!
Lost packages
At Quantum Fuel Systems, we strive to ensure every order reaches you in perfect condition. In the event that your order is lost during transit, please reach out to our customer support team with your order number and any relevant details.
Damaged packages
We understand the disappointment of receiving a damaged package. In such instances, please report to our customer support team within 24 hours of receiving the order and include photos of the damaged items or packages.
We will review the provided documentation and, if necessary, arrange for a replacement or issue a refund. We may also file a claim with the shipping carrier on your behalf.
Yes, we offer refunds and exchanges within 30 days of purchase. To be eligible for a refund or exchange, items must be returned in their original condition, with all tags and packaging intact. Please note that we can't accept any return item that has made contact with fuel.
For returns or exchanges, please contact our customer support. Refunds will be processed to the original payment method within 3-10 days of receiving the returned item. Our payment processor cannot process refunds after 180 days, after this period we cannot issue a refund and may only issue store credit for special circumstances.
We do not collect duties and taxes at checkout. All international orders will include a shipping cost - this is strictly the transportation cost from the specified carrier and does not include any taxes or duties that will be imposed when the shipment is imported into the destination country.
Customers have the sole responsibility of paying the duties and taxes associated with their order. We cannot provide an estimate of what your duties and taxes will be as every country is different. Please contact your country's customs department to get an estimate.
Damaged Order
If you find that the wire on your product is damaged or nicked, you can use a shrink sleeve to cover it and protect the wiring. Heat can be applied using a heat gun to seal the sleeve. Regarding the replacement of parts with those from a different brand (such as a motorcycle fuel pump), please provide specific details of the parts in question to determine compatibility and feasibility.
Should you receive a product with a missing part, please notify us with your order number and a description and photo of what you received. We will promptly send out the missing item to you to rectify the issue. We apologize for any inconvenience caused and strive to fix the error as soon as possible.
Product Specs
To determine if you have the correct fuel injectors for your intake, you need to verify the specifications of your intake manifold. For example, if you have an intake manifold that is designed for ls1/ls6 style long injectors, then you should ensure that the fuel injectors you are considering are compatible with that design. Regardless of the length specification, as long as the type matches (e.g., ls1/ls6 long injectors), you can be assured they are suitable for your application.
The corrugated flex hose length are specified on the product pages. Here is the list of all of the various lengths in millimeters converted to inches:
- 100 mm = 4 in.
- 120 mm = 4.72 in.
- 140 mm = 5.51 in.
- 160 mm = 6.29 in.
- 165 mm = 6.49 in.
- 210 mm = 8.26 in.
- 220 mm = 8.66 in.
- 260 mm = 10.23 in.
- 280 mm = 11.02 in.
- 300 mm = 11.81 in.
- 330 mm = 12.99 in.
- 350 mm = 13.77 in.
- 420 mm = 16.53 in.
If your fuel pump kit comes with a rubber boot, it typically installs on the bottom half of the fuel pump. However, if your vehicle's fuel pump did not originally have a rubber boot, it's not necessary to use the one included in the kit.
The availability of items may vary, but we can provide you with an estimated range when we expect the item to be in stock again. For items that are out of stock, you may leave your email address in the field provided on the product page to be alerted when it is available. Please contact customer service for the most current information on item restocking dates.
Yes, we sell fuel pressure regulators separately from our kits. When inquiring about a fuel pressure regulator, it would be beneficial to provide the year, make, model, and OEM number of your vehicle to ensure that you receive the correct part for your specific application.
Tips & Troubleshooting
In the unlikely event that you should need to request a warranty, please contact our customer service team to troubleshoot and diagnose the issue. Once we determine the cause of the failure, we will proceed with your warranty claim. This process will require you to provide information about the vehicle and the product installation. Please note, in some cases, customers will be responsible for the shipping cost of their warranty replacement.
We have a YouTube playlist with an assortment of customer installations and we have published a general installation guide on our blog site.
Due to the diversity of products we offer, we are unfortunately unable to provide specific installation instructions for all products. Please refer to your vehicle manual for fuel pump installation and replacement information.
If you have just completed your fuel pump installation and now your vehicle won't start, please perform the following checks to ensure the installation was done correctly:
- Ensure all wire connections are tight and secure, nothing should wiggle loose
- Ensure all fuel lines are tightly secured with hose clamps
- Check all fuel lines for cracks, splits, pinholes, etc.
- When inserting the fuel pump into rubber fuel lines or seals, it is best practice to use some automotive lubricant or Vaseline to ensure there are no gaps. This applies to installing a new fuel pressure regulator as well
- Before starting the engine, turn the ignition key to "on" and prime the fuel system. You should hear the pump spinning and drawing fuel. Priming the system allows the pump to draw fuel so the system has proper pressure when the engine starts.
- If you don't hear the fuel pump spinning, connect it directly to a 12 volt battery and ensure that it spins. If it is spinning while connected to 12 volt but not when installed in the vehicle, there is a wiring issue with the vehicle.
If you have performed all of these checks and your pump is not running when connected to 12 volt, please contact customer service to start a warranty claim. We will ask that all of these steps are followed before we proceed with a warranty replacement.
If you have purchased a Quantum fuel pump, it comes with a lifetime warranty. For pumps made by other manufacturers, the warranty terms are set by the manufacturer. It’s important to check the listing for specific warranty details on non-Quantum pumps.
If you’re experiencing a fitment issue with your order, such as the pump not fitting your vehicle or an incorrect component included in the installation, we ask that you provide us with your year, make, model, OEM number, order number, and photos of the original pump or component. This will allow us to assist you more effectively by understanding the situation and offering a suitable solution.
It is not uncommon to hear a slight rattle when handling a new fuel pump, as some internal components may move slightly during transport. This does not necessarily indicate a defect or a problem with the function of the pump. If you are concerned about the noise, please contact customer service for further assistance and reassurance.