Fuel pump failing?, whining noise and strong smell of gas in cockpit |
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Fuel pump failing?, whining noise and strong smell of gas in cockpit |
boxster914 |
Dec 6 2021, 09:52 PM
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#1
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Member Group: Members Posts: 74 Joined: 17-September 20 From: NC, USA Member No.: 24,700 Region Association: South East States |
Hi all
My 71 original FI 1.7 started to whine after a long summer trip from NC to CO. The car has run fine since then with no problems, however. Recently, a strong smell of gasoline has developed in the cockpit. But the car continues to start and run just fine. The fuel pump has been relocated to the front. Does this sound like a failing fuel pump to you? Any suggestions for where to buy a new pump? Is the AA rebuilt one reliable? |
Dustin |
Dec 6 2021, 10:47 PM
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#2
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Member Group: Members Posts: 111 Joined: 19-August 10 From: Woodland Hills, CA Member No.: 12,072 Region Association: None |
I'd guess you should replace the plastic fuel lines that run through the cockpit.
Taking the gas tank out to look at the plumbing under it is real easy. |
Dave_Darling |
Dec 6 2021, 11:45 PM
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#3
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Look under the car. Anything dripping on the ground? Is the fuel smell strong in or near the engine bay? Or inside the front trunk?
I suggest inspecting all of the fuel lines, especially including the ones under the tank. There is a ~6" round hole from the steering rack compartment to the fuel tank compartment, and you can use a light to see if the hoses are OK. Brittle hoses leak. Leaks are a problem. A kinked hose can cause issues, as well. My feeling is that you have two separate issues--the fuel pump noise, and the leak. --DD |
wonkipop |
Dec 7 2021, 01:06 AM
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#4
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Advanced Member Group: Members Posts: 4,296 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille |
fuel pumps go bang and thats it.
if its whining its probably struggling for fuel. i put an inline pump in to replace my failed original. it whines and makes all sorts of noises after a hot start in summer here. until it settles down. pretty sure its struggling to pull boiling fuel through and cavitating etc. but it goes away after a few minutes. but very audible whining. |
dlee6204 |
Dec 7 2021, 07:40 AM
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#5
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
I agree with everything above... get under the car and inspect everything. You have a leak... that's where the fuel smell is coming from and could be a completely separate issue than the whining.
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Olympic 914 |
Dec 7 2021, 10:04 AM
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#6
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Group: Members Posts: 1,667 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
Had an issue where the 044 Bosch pump started making a bunch of noise, It always was noisy though. Turned out the line from the tank to pump had kinked and the pump was struggling to pull fuel though it.
Fixed the line and switched to a less powerful and quieter pump. all is fine now. YEMV |
boxster914 |
Dec 12 2021, 10:15 PM
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#7
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Member Group: Members Posts: 74 Joined: 17-September 20 From: NC, USA Member No.: 24,700 Region Association: South East States |
Thank you for the tips.
I looked under the car and saw the fuel leak. The right nut under the tank has a drip you can see it in this picture. I'm guessing it just needs to be tightened? How would I do this? I can't even see how I would access it. Attached image(s) |
ClayPerrine |
Dec 13 2021, 07:42 AM
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#8
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Life's been good to me so far..... Group: Admin Posts: 15,462 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
The only proper way to fix it is to pull the tank and replace the crush washers in the fittings.
Clay |
Front yard mechanic |
Dec 13 2021, 09:16 AM
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#9
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Senior Member Group: Members Posts: 1,162 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None |
Try a plumbers basin wrench
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