Fuel pump whine
#1
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Wondering if it is normal to be able to hear your fuel pump on these cars. From outside the car, I can only describe it as a buzzing sound that almost sounds like a vacuum leak. This is more noticable when the weather is hot.
#2
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It is normal to hear the pump in a quiet place. If yours seems louder than you expect, pull the cover from the pump and see if the pump or any of the lines or hoses are touching the tank or chassis. This will telegraph noise.
A partially plugged fuel filter will increase the pump buzz.
A partially plugged fuel filter will increase the pump buzz.
#3
Been selling Twinkies on Ebay,
have some extra cash right now.
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have some extra cash right now.
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A little whine is normal, and it is a little louder when the pump is warm on all my cars.
Run some Marvels Mystery Oil in the gas and see if that quiets it down. My '78 and my old TBI Suburban both love that stuff. Improves throttle response, too.
Run some Marvels Mystery Oil in the gas and see if that quiets it down. My '78 and my old TBI Suburban both love that stuff. Improves throttle response, too.
#5
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So one choice is to replace it now, the other would be to wait until it leaves you stranded somewhere and then replace it.
Are you feeling lucky?
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#6
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A dead pump is a dead car and Murphy will have you in the boonies with no cell coverage on a dark and rainy night and the boogie man lurking.
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#7
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So true about a worn pump can stop abruptly.....Mine stopped when I was going 70mph in the middle lane of I77 in Charlotte. Luck for me, I was able to coast across one lane to the road side to call AAA for a tow. A new fuel pump and filter later, the 85 feels like it has the best pickup I've ever experienced.
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#12
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I put a new 044 pump in the GTS and it whines like my 3 year old. Standing behind the car at idle it's louder than the exhaust. Need to find time to get back in there....
[hypothetical question] While I don't think this is the case for me since I just fixed the short hose on the internal pump, if the internal pump failed or partially blocked the line, would that cause the external pump to work harder and thus get louder? Or is a loud pump just a sign of impending external pump doom? [/hypothetical question]
[hypothetical question] While I don't think this is the case for me since I just fixed the short hose on the internal pump, if the internal pump failed or partially blocked the line, would that cause the external pump to work harder and thus get louder? Or is a loud pump just a sign of impending external pump doom? [/hypothetical question]
#13
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I am also looking for a pump. Not sure what MY you have but here are two at $70-$80 with 1 year warranty.
http://cgi.ebay.com/ebaymotors/FUEL-...mZ320543114906
This one looks like the wrong check valve configuration for a 1979, have a question into the company.
http://highflowfuel.com/i-4782521-re...1976-1985.html
http://cgi.ebay.com/ebaymotors/FUEL-...mZ320543114906
This one looks like the wrong check valve configuration for a 1979, have a question into the company.
http://highflowfuel.com/i-4782521-re...1976-1985.html