PINTO CAR CLUB of AMERICA
Welcome to FordPinto.com, The home of the PCCA => General Help- Ask the Experts... => Topic started by: From_Jonah on August 04, 2013, 10:17:35 PM
-
So, when I'm taking off and when I reach certain speeds/when the engine is under a strain (and more or less in 2nd and 3rd gear) there's a really metallic sounding rattle coming from what I believe to be outside the car. I have no transmission slip at all. I'm thinking possibly a flexplate bad but idk how to tell? It sounds almost like valve rattle (which I have) but it's waay to loud for that I think. Anyone have an idea?
-
Have you checked your exhaust system to make sure you haven't lost a hanger?
-
Yessir. My exhaust is solid. It's puzzling my and I can't figure out the best way to pinpoint it.
-
If nothing on the outside is rattling it could be the converter, loose fins will rattle big time took me a while to figure that one out once..
-
Hmm. Well I drilled out the core of the converter a while back and it was doing it beforehand. About the same as it is now.
-
Hmmm, not sure what you mean by drilled out the core???, I'm talking about the vanes inside, they can come loose if not furnace brazed and they do rattle.
-
Maybe we're talking about two different converters ??? I drilled out the cor of my catalytic converter. It was clogged up.
-
Could this be ignition pinging when under load? Check your timing and put in a little higher octane gas.
-
Could this be ignition pinging when under load? Check your timing and put in a little higher octane gas.
I was thinking this as well. Mine started doing it with my new carb & backing the timing down hasn't solved it.
-
Hmm. Maybe so?? I'll give it a shot anyway. I'll try to remember to take a recording this afternoon and I'll post a video link so maybe y'all can hear it.
-
Maybe we're talking about two different converters ??? I drilled out the cor of my catalytic converter. It was clogged up.
Ok guess we were, I was talking about the torque converter, LOL..
-
Could this be ignition pinging when under load? Check your timing and put in a little higher octane gas.
Possible, but pinging don't really sound metallic though???.
-
I was thinking this as well. Mine started doing it with my new carb & backing the timing down hasn't solved it.
Is the jetting the same as the old carb?, sounds like it could be lean??..
-
Ok guess we were, I was talking about the torque converter, LOL..
OOOOH haha. Mines a manual actually so I guess that's not it. I need to get it up on a lift and see of I can find anything else that could be loose or something.
-
Is the jetting the same as the old carb?, sounds like it could be lean??..
I changed the EGR plate gasket to rid myself of the vacuum leak I had but still haven't got the carb dialed in yet. This thing is driving me up the wall.
-
OOOOH haha. Mines a manual actually so I guess that's not it. I need to get it up on a lift and see of I can find anything else that could be loose or something.
Well, guess that eliminates that theory then, LOL...
-
I changed the EGR plate gasket to rid myself of the vacuum leak I had but still haven't got the carb dialed in yet. This thing is driving me up the wall.
If it's identical to the old one and adjusted the same it should just bolt on and go I would think?, maybe something is different inside from the old one??..
-
check the fuel tank straps. mine came loose once.
-
check the fuel tank straps. mine came loose once.
Okay, cool. I'll give it a shot.
-
Here's the video I made of it. It's kinda faint but I think y'all should be able to hear it well enough to know what I'm talking about.
http://youtu.be/xUitsrlUX2A
-
Hmmm, didn't sound like pinging at all more like something's loose?, but then again my speakers are getting bad so I could be wrong?..
-
This is going to sound ridiculous, but I experienced a similar sound in my '72 Squire wagon after folding the rear seat down to haul a rear bumper and then putting it back into the upright position. Even though the latch appeared to be secure, it was allowing enough vibration to create a rattle under certain conditions. I drove myself crazy looking around on the outside of the car (that's where it sounded like it was coming from) until I stumbled onto it!
Dwayne :)
-
the rear seat latch rattles on both my pintos .. when i first got the 80 pinto one of the first things i did was to fix the drivers sun visor .. the shaft had broken so i JB welded a piece of stud to hold it in place .. after fixing a few other things so i could drive it some it developed a rattle under the dash i thought .i pulled the glove box .. the radio .. the speaker .. all the heating duct work i could reach .. tightened up the exhaust and fixed every loose thing i could shake .. still had that annoying buzz of a rattle at speed ... i was about to the point of hiring some kid to find the noise .. i took off down the street one day with the sun glaring in my eyes ... i reach up and swing down the sun visor ... to my surprise no more rattle ..i cant hear your video here at work .. i`ll play it at home tonite ...
-
It's amazing how sound can travel through a vehicle.
-
It's always what you never think it would be haha. And yeah. It does sounds like something loos sort. I guess I'll just have to try and go through it and find anything that might be rattling :P
-
Yeah, and start looking in an area you'd least think it would come from, probably save a bunch of time, LOL..
-
Have you checked your exhaust system to make sure you haven't lost a hanger?
I had a Mustang that had the same sounding issue. Under load the engine would torque over enough that the exhaust pipe would contact a frame rail. A little crowbar messaging fixed the problem. You might also want to check your motor mounts. I have seen where an engine with bad motor mounts torqued over enough that the fan blade contacted the fan shoud.
71HANTO
-
Ahhh, okay. I'd not even though of the motor mounts. How would I go about checking the motor mounts? I'd think i could see where they were physically broken.
-
Ahhh, okay. I'd not even though of the motor mounts. How would I go about checking the motor mounts? I'd think i could see where they were physically broken.
You can check them with another person. Here is the drill...have someone (you trust) start the car, put it in Drive, WITH THE BRAKES ON including the Emergency brake. Have them slowly rev the engine. STAND ON EITHER side of the car and NOT IN FRONT! The engine will want to twist to one side (can't remember which side). If the mount pulls apart, you have a bad mount.
71HANTO
-
Okay awesome. Hopefully and can try that out in the next couple days. In my first post I said that it was doing it when I got it but now that I think about it, I think it started later. I just can't remember when for sure.
-
I've had this happen a couple time, similar rattle, depending on speed and torque the rattle would come and go. both times it was the heat shield around the exhaust manifold. The shield rusted around where the bolts hold to the manifold and it rattled. I also recall there is a nut/bolt combo that holds the front/rear shield together at one/two points. Unsure if this could be it but... worth a look.
-
think it can be the alternator bearing going out ?
brad :)
-
... STAND ON EITHER side of the car and NOT IN FRONT! ...
i will second that bit of advice seeing that i have spent time in intensive care after NOT standing to the side !!!
71HANTO
-
how old are the u-joints.....
-
think it can be the alternator bearing going out ?
brad :)
Could be! I'll take a look.
how old are the u-joints.....
As far as I know, they're original.
-
If the U-joints are original it wouldn't hurt to check them regardless..
-
muffler bearings and blinker fluid...
-
jack and handle in the spare tire area? maybe some wrenches hiding under the seats rattling against each other? I've had both of those problems before.
-
Mine makes a 'metallic rattling sound' over bumps. One of the binder clip things on the rear springs (metal band) is loose. It annoys me, but rear springs aren't in the budget atm. lol
-
Do you have an AIR pump (smog pump) on your car still? I think they came factory with one. They make noises like that. I chased a similar noise around my F150 with a 5.0 only it made that noise at idle only. I swore it was something in the bottom end of the engine like a loose timing chain slapping the timing cover, but it turned out to be the smog pump.