Got some things I need help with here for my 95 f-150.

1. Hearing a buzz type sound coming from my exhaust during low rpm driving. I looked under my truck, and I can tell that one of my heat shields between my truck and cat is loose. How can I fix this? I tried ripping the shield off, and it won't come, but it is loose, and probably making the noise.

2. I have an ANNOYING thumping sound that sounds like it is coming from my drivers kick panel or somewhere near the firewall on the drivers side. I have taken my door panel apart thinking the speaker was loose and banging around, but that wasn't it. I've tried looking under the kick panel and in the engine compartment, but I don't see anything obvious. The noise has gotten increasingly louder and more annoying.

3. Lastly, my brakes have recently started making a wierd feeling. If I try and slow down normally, if feels like a slow ABS braking. I can actually feel the truck surging to a stop. If I brake harder then normal, it gets a loto less noticeable. I'm thinking that the rotors might be warped, but it'll cost me $80 in new rotors to find out, and that would suck pretty bad to drop $80 and not fix the problem.

If anybody has had these problems and can give me a starting point for trying to fix tham, I'd really appreciate it.

 

1 Put some screws in it to hold it tight, or pack some mineral wool between it & the cat.

2 What causes the thump? What does it sound like? Frequency? Affected by speed? Only with engine running/only while moving/etc?

3 Lift the wheels & spin them while you watch the edge of the rotor. If it's warped that badly, you'll see it.

 

ive always fixed loose heat shields with long hose clamps, link a couple together if you need to

sounds like badly warped rotors, get them turned and then try to keep from ridng the brakes so much or by slowing down so quickly

 

I've got the same type of sound coming from what seems to be right under where my left foot usually rests.

It is intermittent and doesn't always correlate with bumps in the road.

I'd love to know what it is.

Tim W

 

On my 89 F250, I have a thumping sound that gets more frequent with speed. I have found out that it is the lower panel on the door, it it loose, you might want to check it out.

I don't know about the others.

 

The obviously loose heat shield isn't the one that wraps around my cat, it's the one above my cat attached to the underside of the truck.

The thumping sound is hard to describe. It isn't really correlated to speeding up or slowing down, or bumps in the road, or turning for that matter. It is pretty random about when it makes the noise. I guess I can describe the sound like this: If you've ever had a little refrigerator (like one you get for your dorm room in college) and carried it and heard the cooling unit shake, that is what the thump sounds like.

I'm gonna go ahead and assume that my rotors are warped. I'm gonna try and find a better price then $75 a pair for stock rotors.

 

here is a possibility, I’m thinking the noise is coming from the body mount. It may be loose, causing the body shifting on the mount.
take a look and see if there are marks like the two rubbing together, abrasions of some sort.
to your brake problem? the rotors definitely sound warped, some auto parts stores can turn them for pretty cheap, but you must put on new pads after.

 

Sounds like it's possesed ford demons , have you tried an exorcism???



1995 F250 4X4 351-AUTO:-X12

 

>The obviously loose heat shield isn't the one that wraps
>around my cat, it's the one above my cat attached to the
>underside of the truck.

Get a sheet-metal screw or 2 and reattach it.

>The thumping sound is hard to describe. It isn't really
>correlated to speeding up or slowing down, or bumps in the
>road, or turning for that matter. It is pretty random about
>when it makes the noise. I guess I can describe the sound
>like this: If you've ever had a little refrigerator (like
>one you get for your dorm room in college) and carried it
>and heard the cooling unit shake, that is what the thump
>sounds like.

Sounds like the wheelwell is loose & flapping in the wind, or the radius arm bushings are gone. Could also be a bad shock or sway-bar bushings. I had that sound until recently when I found my rear u-bolts so loose that my axle tubes were cracked & leaking oil. Yes, it sounded like it was coming from the front.

Oh, well. Fortunately, I got another axlehousing free & it's already powdercoated & awaiting new parts for the rebuild... Soon, I'll be able to get rid of these painfully slow 3.55 gears and go back to 3.08s!