noisy fuel pump
Thread Starter
Newbie
Joined: Mar 2011
Posts: 8
Likes: 0
From: Florida
Year: 1989
Model: Cherokee
Engine: inline 6
So, i have replaced my damn fuel pump twice now. the first one was old. so i brought a new one in. then it died because the positive wire touched the metal housing around the fuel pump(shorted it out) so now i have my 3rd fuel pump. I put it in and it works just great. but about a week or so later it started making sounds.. like really loud. when its nice and cold, or hasnt been on in awhile it is silent untill 10 minutes into driving. it then gets louder, and louder, and louder untill it is so loud that i feel like im driving a time bomb. it will even be louder then my radio at times. WHAT COULD BE CAUSING THIS LOUD NOISE COMING FROM MY FUEL PUMP
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Gotta ask this question.
What BRAND of fuel pump is it?
If it is an Airtex, get it out of there. They are known for reliability issues right out of the box. I won't install them or recommend them to anyone.
Generally speaking, a fuel pump that "progressively" gets louder is most likely going to eventually fail.
What BRAND of fuel pump is it?
If it is an Airtex, get it out of there. They are known for reliability issues right out of the box. I won't install them or recommend them to anyone.
Generally speaking, a fuel pump that "progressively" gets louder is most likely going to eventually fail.
Thread Starter
Newbie
Joined: Mar 2011
Posts: 8
Likes: 0
From: Florida
Year: 1989
Model: Cherokee
Engine: inline 6
so.... unfortunately its an airtex.. i printed out your review, and im going tot ake my noisy fuel pump and this review back to discount auto parts, get my money back and buy the better brand of fuel pump. thanks for the advice
i love cherokee forum.. i always get help
i love cherokee forum.. i always get help
Member
Joined: Aug 2011
Posts: 113
Likes: 0
From: Mesa, AZ
Year: 1993
Model: Cherokee
Engine: 4.0 liter High Output
i have had the same exact problem with mine!!! and it was an airtek! So i was wondering... did buying a different brand fuel pump fix your probem? How did you end up getting it to stop humming so loud!!!! i need help!!! if i drop that fuel tank out one more time and get fuel all over me im going to lose it!!!
Member
Joined: Aug 2011
Posts: 113
Likes: 0
From: Mesa, AZ
Year: 1993
Model: Cherokee
Engine: 4.0 liter High Output
i have had the same exact problem with mine!!! and it was an airtek! So i was wondering... did buying a different brand fuel pump fix your probem? How did you end up getting it to stop humming so loud!!!! i need help!!! if i drop that fuel tank out one more time and get fuel all over me im going to lose it!!!
I guarantee, the problem is NOT with the Airtex pump.
They are the Top supplier of fuel pumps in the aftermarket, supply many OE fuel pumps found in today's vehicles, as well as supply the US Military.
When it comes time to eventually replace my Jeep's factory fuel pump, I WILL be using an Airtex pump.
When you replaced the pump, did you also replace the strainer before the pump, the fuel filter after the pump, AND clean all the sediment out of the tank?
Fuel pump strainer and inline fuel filter replacement does not take the
place of cleaning a dirty, contaminated fuel tank!
Remember, the Major Causes of Fuel Pump Failure Are:
They are the Top supplier of fuel pumps in the aftermarket, supply many OE fuel pumps found in today's vehicles, as well as supply the US Military.
When it comes time to eventually replace my Jeep's factory fuel pump, I WILL be using an Airtex pump.
When you replaced the pump, did you also replace the strainer before the pump, the fuel filter after the pump, AND clean all the sediment out of the tank?
Fuel pump strainer and inline fuel filter replacement does not take the
place of cleaning a dirty, contaminated fuel tank!
Remember, the Major Causes of Fuel Pump Failure Are:
– Rust, corrosion or other contamination in the vehicle’s
fuel tank
– Clogged or plugged fuel filters and strainers
– Faulty on-vehicle fuel pump wiring or connectors
fuel tank
– Clogged or plugged fuel filters and strainers
– Faulty on-vehicle fuel pump wiring or connectors
When Replacing a Fuel Pump, ALWAYS...
– Replace the filter or strainer with new
– Professionally flush or clean the fuel tank
– Inspect, repair, or replace suspect vehicle connectors
and wiring
– Refer to the Diagnostic/Troubleshooting and Installation
Guidelines document found in the fuel pump box– Professionally flush or clean the fuel tank
– Inspect, repair, or replace suspect vehicle connectors
and wiring
– Refer to the Diagnostic/Troubleshooting and Installation
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CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
No matter who they are a supplier to, too much direct evidence against Airtex.
And peronal experience as well.
I will continue to recommend that people not purchase them.
And peronal experience as well.
I will continue to recommend that people not purchase them.
Member
Joined: Aug 2011
Posts: 113
Likes: 0
From: Mesa, AZ
Year: 1993
Model: Cherokee
Engine: 4.0 liter High Output
Originally Posted by tjwalker
No matter who they are a supplier to, too much direct evidence against Airtex.
And peronal experience as well.
I will continue to recommend that people not purchase them.
And peronal experience as well.
I will continue to recommend that people not purchase them.
Member
Joined: Sep 2011
Posts: 128
Likes: 1
From: Sicklerville NJ
Year: 98 2 Door SE
Model: Cherokee
Engine: 4.0 High Output
I guarantee, the problem is NOT with the Airtex pump.
They are the Top supplier of fuel pumps in the aftermarket, supply many OE fuel pumps found in today's vehicles, as well as supply the US Military.
When it comes time to eventually replace my Jeep's factory fuel pump, I WILL be using an Airtex pump.
When it comes time to eventually replace my Jeep's factory fuel pump, I WILL be using an Airtex pump.
When you replaced the pump, did you also replace the strainer before the pump, the fuel filter after the pump, AND clean all the sediment out of the tank?
Fuel pump strainer and inline fuel filter replacement does not take the
place of cleaning a dirty, contaminated fuel tank!
Remember, the Major Causes of Fuel Pump Failure Are:
place of cleaning a dirty, contaminated fuel tank!
Remember, the Major Causes of Fuel Pump Failure Are:
– Rust, corrosion or other contamination in the vehicle’s
fuel tank
– Clogged or plugged fuel filters and strainers
– Faulty on-vehicle fuel pump wiring or connectors
When Replacing a Fuel Pump, ALWAYS...
– Replace the filter or strainer with new
– Professionally flush or clean the fuel tank
– Inspect, repair, or replace suspect vehicle connectors
and wiring
– Refer to the Diagnostic/Troubleshooting and Installation
fuel tank
– Clogged or plugged fuel filters and strainers
– Faulty on-vehicle fuel pump wiring or connectors
When Replacing a Fuel Pump, ALWAYS...
– Replace the filter or strainer with new
– Professionally flush or clean the fuel tank
– Inspect, repair, or replace suspect vehicle connectors
and wiring
– Refer to the Diagnostic/Troubleshooting and Installation
Guidelines document found in the fuel pump box
Member
Joined: Aug 2010
Posts: 155
Likes: 1
From: Music City
Year: 1996
Model: Cherokee
Engine: 4.0 high output
I wish I would have read this thread before I bought an Airtek fuel pump. I'm starting to have fuel issues a few months after installing it and it is so freakin loud!
Member
Joined: Aug 2011
Posts: 113
Likes: 0
From: Mesa, AZ
Year: 1993
Model: Cherokee
Engine: 4.0 liter High Output
Originally Posted by EducatedCracker
I wish I would have read this thread before I bought an Airtek fuel pump. I'm starting to have fuel issues a few months after installing it and it is so freakin loud!
Junior Member
Joined: Jun 2011
Posts: 47
Likes: 0
From: Arizona
Year: 1987
Model: Cherokee
Engine: 4.0
I have experience AGAINST airtex as well on this one.
Replaced pump, filter and strainer about 2 months ago. first impressions were wow my jeeps fixed now and dam this things loud!!!!! Right in the middle of a trail run POS started failing me luckily made it about 3 miles from home before it quit completely. Not to mention the sending unit is no where near accurate, reads less than 3/4 tank when full. So put another tally on the FAIL side for airtex. POS!!!!!!
So taking it back this week and getting a Delphi or Bosch unit along with a used oem sending unit from local jeep yard.
Richieb9 where did u get bosch unit from? did it come as kit with strainer, hose, connector etc or just with pump?
Replaced pump, filter and strainer about 2 months ago. first impressions were wow my jeeps fixed now and dam this things loud!!!!! Right in the middle of a trail run POS started failing me luckily made it about 3 miles from home before it quit completely. Not to mention the sending unit is no where near accurate, reads less than 3/4 tank when full. So put another tally on the FAIL side for airtex. POS!!!!!!
So taking it back this week and getting a Delphi or Bosch unit along with a used oem sending unit from local jeep yard.
Richieb9 where did u get bosch unit from? did it come as kit with strainer, hose, connector etc or just with pump?
Last edited by Taro2413; Jan 15, 2012 at 08:34 PM.
Senior Member

Joined: Nov 2008
Posts: 972
Likes: 12
From: south bend indiana
Year: 1993
Model: Cherokee(XJ)
Engine: 4.0 i six H.O.
did u have to take out your gas tank to change the fuel pump? mine is on the bottom front, on the passenger side.


