Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Jeep > Grand Cherokee | Grand Cherokee SRT8
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
Thread Tools
Old 12-30-2011, 01:23 PM   #1
Mary Ann Weigner
AF Newbie
Join Date: Dec 2011
Location: Menifee, California
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Humming noise

2002 Jeep Grand Cherokee Limited 4WD 4Dr >100k miles humming noise within hours after 120k mile major tuneup performed. Does anyone know what it might be, and why it would now show up after the major tuneup? Could it only be coincidence or could it be something the mechanic did or overlooked to do? The vehilce hums when I turn the key to accessorry, when I turn the engine on, during idling, and no matter the gear set, and when driving, although because of the road noise (vehicle has air leaks in the door frames), it is there but faint. The fuel sending unit was replaced, but not the fuel pump, at least 6 months ago. The noise is heard louder in the back than under the hood. It is heard more distinctly with the removal of the gas cap. Could some dirt or something get caught up in the fuel filter. During the major tuneup, would the mechanic check the fuel filter to see if it needs replacing? The mechanic's print out sheet is very vague as to what he did on my vehicle for a major tuneup. Full check of oils, belts, hoses, etc. is all he did. When I questioned the front girl, she said it says, "full check". I don't think that's right. There should be a check-off sheet specifying all the items for the oil, grease, belts, gages, cables and tubes, etc., shouldn't there be? I usually go to Chrysler, even though out of warranty. I took a chance on a local mechanic because he was recommended as the best mechanics in the group of mechanics where I live.
Thank you.

Last edited by Mary Ann Weigner; 12-30-2011 at 01:26 PM. Reason: misspelled bet instead of best.
Mary Ann Weigner is offline   Reply With Quote
Old 12-30-2011, 10:07 PM   #2
AF Newbie
Join Date: Sep 2005
Location: kissimmee, Florida
Posts: 52
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Humming noise

Defective fuel pump. I don't want to think that...any way,, that's how total fuel pump failure starts,,with that noise.eventually you'll need to replace the fuel pump. if your jeep dies and you do not hear that noise when opening ignition,, the pump is gone. Hey, It happened to me.
Raimundo is offline   Reply With Quote
Similar Threads
Thread Thread Starter Forum Replies Last Post
94 Civic with constant high pitch humming in front end.... lizshouse88 '92-'95 Civic | EL | Civic Hybrid | Civic GX NGV 2 07-19-2009 05:49 PM
2000 blazer 2 dr 4x4, loud humming noise and grinding noise MrEd002u Blazer 3 07-14-2004 12:09 AM
98 Accord making humming noise devinschultz Accord/TSX/Accord Hybrid 6 07-13-2003 08:24 PM
323i humming noise BMWDriver 3 Series 1 08-05-2002 02:26 PM



Go Back   Automotive Forums .com Car Chat > Jeep > Grand Cherokee | Grand Cherokee SRT8

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 06:47 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
no new posts