What happens when a fuel pump relay fails?
When it fails, symptoms include poor idle quality, hesitation when accelerating, reduced fuel economy, loud humming noises emanating from the main pump and accelerated wear of the main pump. Faulty pre pumps can also lead to hi amperage loading of the fuel pump electrical circuit resulting in blown fuses and or failed relays as mentioned above.
Why does my fuel pump keep stalling out?
We tested several, and this is the only one we found to be water-tight. The main fuel pump relay can be troublesome causing intermittent stalls and hard starting. The most common failure is overheating of the main 12V power connection to the point that the solder joint fails.
How long does it take to replace a fuel pump in a Toyota?
That sounds simple, but the fuel pump in your Toyota or Lexus lives inside your gas tank. To get at it, the mechanic may be in for a half-day’s work. We checked out YourMechanic.com and found that a fuel pump replacement can take as long as four hours. So, you are not going to be waiting for this job to be completed.
How many Toyotas are involved in the fuel pump recall?
The recall affects nearly 2 million Toyota and Lexus brand vehicles, nearly as many as the company sells in America in a year. The models included in this huge recall are as follows:
When do you need to replace the fuel pump relay?
If the engine is stalling or not starting, or the fuel pump is not making any noise when the key is on, you may need to replace the fuel pump relay. 1. Engine stalls 2. Engine does not start 3. No noise from the fuel pump
Why does the fuel pump relay need to be Tip Top?
The fuel pump relay needs to function in tip-top condition if the engine is expected to run without any issues. Therefore, any compromise in the fuel pump relay can directly cause engine problems, such as the stalling of the engine.
What to do when your fuel pump goes out?
Step 1: Turn on the ignition key to run. Listen for the fuel pump to actuate. Also, listen to the fuel pump relay for any buzzing or clicking noise. Step 2: Start the engine. Check that there is oil pressure. On some vehicles, there will only be an oil light indicator. When the indicator light goes out, then there is oil pressure.
Where is the blue wire in a fuel pump relay?
Locate the blue (with an orange trace) wire in the 40-way electrical connector (Figure 12). RELAY WIRE HARNESS 16. Cut the blue (with an orange trace) wire one inch (25 mm) from the 40-way electrical connector (Figure 13). 17.
When to replace a relay in a Volvo?
If you have older or original relays (10 years and up) in your Volvos, or if you are experiencing intermittent or temperature related or fuel related stalls or mysterious electrical issues, it might be time for a relay replacement before it leaves you stranded. What are Common Relay Type Failures?:
What should I do if my fuel pump does not work?
After mechanic replaced… After mechanic replaced fuel pump gas gauge does not work. Took my truck to mechanic for routine maintenance and he replaced the fuel pump. After I got the truck back and filled the gas tank I noticed the fuel gauge wasn’t reading correctly.
Is there a fuse for the fuel pump?
Click to expand… or maybe the fuse box is shared with differently optioned trucks and that is the spot for a fuel pump relay on a diesel :shrug: My friend has a 07.5 chevy with a fuse and relay but in my 09 it doesn’t.
Where do you find the fuel pump relay?
When you shut off the ignition, it powers down the fuel pump. In most vehicles, the fuel pump relay can often be found in the fuse box in the engine bay, which is usually a long black box which contains fuel pump relay along with various other fuses and relays.
When does a fuel pump relay go bad?
If you’re lucky and your car restarts after a short while, your fuel pump relay is faulty, which requires immediate inspection. The fuel relay may be the culprit if the car suddenly seems to lose power while driving, or slowing down with no apparent reason.
How much does it cost to replace a fuel pump relay?
Fuel pump relay Replacement cost. The average replacement cost of the fuel pump relay is around $90 and $150. The parts may cost you between $20 and $50, while the remaining cost is the labour cost. Fuel pump relay is a small electronic device which is easily acquired online or at the nearest spare parts shop.