Quiet thud in the rear... :P

[Blast7]

No it's not what you are thinking. Sometimes when I am just sitting in my SHO with it idling I hear a slight thudding sound in the rear of my SHO, more or less the trunk area. I was wondering if this could be some evidence of fuel delivery problems. I know that this is kind of vague but I am going to measure the fuel pressure tonight and will see what I find.

<small>[ September 24, 2002, 06:44 PM: Message edited by: Blast7 ]</small>

 

[Mr Anonymous]

Where it's happening at idle, I'd suspect a loose exhaust pipe/muffler. Have you checked your spare tire to make sure it's secure?

 

[EZ4U2ENVY]

I have the same problem... i suspect it to be a fuel pump going out- and i also notice it that it really thumps when my fan goes on- like current causes the thump or something to that affect.. but yes i have it to and its so annoyning- if anyone can help that would be cool

 

[Blast7]

I was also thinking it was the fuel pump. I didn't have time to check the fuel pressure before it got dark but will do so when I get the chance. Everything is secure, although I have a lopey feel to my SHO at idle. It doesn't show on the tach but you can definitely feel it as well as hear it.

 

[projectSHO89]

Listen carefully to the sound. Does it sound like a gurgling or rumbling from inside the tank?

If so, it's the check valve on the fuel return line side.

Steve

 

[Bluto]

I have the same sound on my 94atx. I thought it could be a slight backfire, or it sounds like the tank poping in(ie vent theory). I have changed my 02 sensors tonight and I will see if I get that backfire pop tomorow.

ps. My car runs so much better now that I changed them.

 

[Bluto]

I changed my 02 sensors last night, and today I don't get that thud at an idle.

I suspected the noise was a quite backfire. In my case that seemed to be it.

 

[blackcurrant]

I get this sloshing sound when i pull my 94 MTX in the garage after the evening commute...like liquid in a tub...must be the gas tank? squint

 

[SolidState]

I get a good thud from the back of my car....actually, I used to to get two. One was the struts....

the other one has to do with the brakes....I think I have a problem with the biasing valve squint