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1999 Dodge Caravan

Tiny
B-SIKO
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 129,000 MILES
I have replaced the fuel pump and filter and still at idle it whistles like EEEEEEEE sound from the fuel pump. As you give the car gas the sounds dies for a second if you are in drive and moving and pulling out the sound goes away and as soon as you back off the gas it returns. Help!
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Saturday, May 29th, 2010 AT 12:53 PM

8 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Electric fuel pumps do make a humming sound. Is it really loud?
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Friday, June 4th, 2010 AT 12:55 PM
Tiny
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Yes it is very loud even inside the car eeeeeeeeeee
is the sound it makes and i've had the caravan for years and I never heard it before. The sound is the same as before I replaced the fuel pump and filter which everyone said it was. I also put in an OEM pump assembly and filter.
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Friday, June 4th, 2010 AT 5:21 PM
Tiny
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There really isn't anything other back there that could make that noise. I question if they installed the pump correctly. It could be touching the tank making the humming louder.
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Saturday, June 5th, 2010 AT 6:36 PM
Tiny
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It dosen't make the normal humm sound it makes a whistle sound coming from the regulator on the fuel pump assembly is what it sounds like to me.

Someone else said it could be the air pump but all I know is there is a vaccum pump but not an air pump that I know of
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Saturday, June 5th, 2010 AT 6:48 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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You're correct. No air pump. My only thoughts are there may be a problem with the vent on the tank. Other than that, if you are sure that is where the sound is coming from, something must be wrong with the fuel pump.
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Saturday, June 5th, 2010 AT 9:54 PM
Tiny
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If it was the vent wouldn't opening the gas cap relief
the problem?

Is there a vaccum pump that could cause such a problem?
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Sunday, June 6th, 2010 AT 10:59 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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No vacuum pump that I've ever seen in the fuel tank. As far as you comment, it should stop of you open the fuel cap.
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Sunday, June 6th, 2010 AT 11:20 PM
Tiny
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I have opened the gas cap and the whistle is still there.

I know there is no vaccum pump in the gas tank it up in the engine.

Some one is telling me that this vaccum pump can cause the problem I have. I want to be sure before I buy another expensive part as I have already wasted alot of money for nothing trying to fix this problem.

Also is there a way to check the vaccum pump?
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Monday, June 7th, 2010 AT 12:20 PM

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