92 Integra Noise From up Front Under Acceleration:
Car has 161,000 miles, 5 speed manual LS.
Parts I have replaced include pass. Side axle, speedo cable, suspension is skunk2 sport shocks with megan racing coilovers, all done within last 3 months. Wheels and tires are also new. Everything seems to be tight as well (ball joints, tie rods, wheel bearings).
I also checked the brake components up front and all is tight and working properly.
It seems to me that the engine mounts are ok, the clutch engages and shifts smoothly, and other than the noise, the car drives very smoothly.
If sitting still in neutral or in gear and I rev up the engine I hear no noise.
The noise is not present when just cruising (under 10% throttle applied)
The noise sounds like a churning or slight metal-to metal grind possibly and it occurs at ANY time when more than 10% throttle is applied, like any other noise it’s hard to describe lol. But it’s not a clunking noise or clicking noise like a bad axle or something, I’ve never heard this noise before and if the radio is up or the window is down it is hard to pick up, it is certainly not very loud at all. It also seems to have no effect on power or response as well which is why I am so puzzled.
What I think it might be:
Timing belt/tensioner noise?
Intermediate shaft bearing going bad?
I’m beginning to lean to the side of an engine related problem rather than a drivetrain problem as there is no vibration related with the noise but like I said I’m not sure.
I don’t really know what else it could be so I was hoping someone maybe could give me some pointers on some other things it could possibly be. Thanks for any help!!
Might be speed sensor had the same prob im my LS. Swapped it out n noise was gone. My DB2 also has the same sound goin on so i plan on switching it out to when i get my cluster in.
word, like the vehicle speed sensor on the transmission? Cause I replaced the speedometer cable with an oem one from acura a few months ago, I should have added that to the first post
check your speedo cable. my 90 GS made an AWFUL squeeling noise like dying puppies, and i replaced the speedo cable because mine popped out of my speed sensor cuz i forgot to put the clip on and it mangled up and broke. i would recommend trying this just because of how easy it is. disconnect the speedo cable from the speed sensor by removing the little clip, DONT LOSE THE CLIP. just pull the speedo cable out of the sleeve. you will see the keyed end, just grab it and pull it out its like 3 or 4 feet long and just grease it and put it back. when u put it back just push it all way in and turn it until it goes all the way, it is a square end so just spin and it should pop back in. cant hurt to do anyway and its a fairly easy diag.
yea that was one of the first things i changed on the car actually cause the old one did go bad after i changed the cluster lights so i know it’s not that. this noise is not as loud and is def more around the engine compartment rather than from behind cluster area
I think you can eliminate issues from the belt/tensioner, although you can check for too much play, too much tension, or a worn belt if you want to since that’s not hard (belt related issues usually involve screeching). Did you replace both axles or just one? I had a Civic with a weird noise that sounded like it was coming through the firewall. Well, it kinda was. I checked it out and it turned out to be a very slightly cracked axle :o. I would describe it to be similar to what you might be experiencing. It didn’t seem to affect anything performance wise either.
ok i did not see that u listed that you replaced it, but i figured i would throw it out there because i just replaced mine like 4 weeks ago and mine is already squeeling again i need to regrease it.
I just replaced the one axle on the passenger side cause it was tweaked at the inner boot going into the tranny and made noise when i turned left sharply. I could change the driver axle i suppose to see if that fixes it.
It’s not a wheel bearing, the noise is dependant on throttle application, not wheel speed, i.e. it does it depending on how hard i depress the throttle, it does not increase or vary with wheel speed. My last car had a bad wheel bearing that made noise when i turned left, I know what that sounds like. This noise is much quieter
Reading things back over again you said you did replace the speedo cable…Have you tried the speed sensor on the tranny yet? Other than that i cant think of anything else besides all that was listed before. Mabey the distributor? Bearings in that are known to go bad in our vehicles. Being its noise when throttle is applied the distributor internals do rotate according to engine rpms.
when you pulled off the front tires did you notice any metal shavings, mine did a screething sound like that and it turned out the top control arm was rubbing the inner strut tower and metal was shavings off. I had to raise my car a lil more and adjust my camber.
I wasnt able to make out when it makes the sound, does it do it only when under throttle. Not presant when in neutral/coasting in any speed.
I doubt its engine related since you dont hear it when you rev it at a stop.
Having the same noise. Mine is only going straight during take off in first and when doing a hard stop from reverse. I can feel the clunk through the pedals. Interested in seeing what you find.
[QUOTE=R1titan911;2207093]Reading things back over again you said you did replace the speedo cable…Have you tried the speed sensor on the tranny yet? Other than that i cant think of anything else besides all that was listed before. Mabey the distributor? Bearings in that are known to go bad in our vehicles. Being its noise when throttle is applied the distributor internals do rotate according to engine rpms.
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well i actually did read a write up about rebuilding the speed sensor on the tranny. i started thinking it could be that cause the p/s pump on the car was no good when i got it so i removed it and looped the system but if its looped could fluid not be getting to the speed sensor resulting in the noise? the speedo and rpm’s on the dash all work fine so wouldn’t they be affected if the vss on the tranny was going bad?
as for the distributor, that could be a possibility too i suppose, i’ll have to try another one to see whether or not that’s it. i didn’t know they had bearings in them that could go bad
[QUOTE=da6xsi06;2207141]when you pulled off the front tires did you notice any metal shavings, mine did a screething sound like that and it turned out the top control arm was rubbing the inner strut tower and metal was shavings off. I had to raise my car a lil more and adjust my camber.
I wasnt able to make out when it makes the sound, does it do it only when under throttle. Not presant when in neutral/coasting in any speed.
yea its only when applying throttle, no noise when coasting, sitting still and revving up or even when cruising at a steady speed, but as soon as i push the gas down to accelerate i can hear it. and i also didn’t notice any metal shavings either, nor rubbing is going on from what i could observe
Yea as for the distributor just pull off the cap and check if there is any red dust in, by or behind the rotor button. If so that indicates that the bearing is shot and needs to be replaced asap. This is what i would suggest to check being its only under throttle. Or just pull the whole distributor off (3bolts 2 electrical) and see if you can spin it freely with only the resistance of the magnets. Had this prob with my LS but i noticed it just in time before it was to late. But my issue was i noticed the noise slightley at idle while listening at the engine with the screwdriver trick. Got louder when i applied throttle by hand at the TB. If i can think of anything else ill post up but i hope you find the problem soon and fix the problem.
[QUOTE=R1titan911;2207314]Yea as for the distributor just pull off the cap and check if there is any red dust in, by or behind the rotor button. If so that indicates that the bearing is shot and needs to be replaced asap. This is what i would suggest to check being its only under throttle. Or just pull the whole distributor off (3bolts 2 electrical) and see if you can spin it freely with only the resistance of the magnets. Had this prob with my LS but i noticed it just in time before it was to late. But my issue was i noticed the noise slightley at idle while listening at the engine with the screwdriver trick. Got louder when i applied throttle by hand at the TB. If i can think of anything else ill post up but i hope you find the problem soon and fix the problem.
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alright cool man thanks for the tip, i’ll check it out tomorrow and let yall know what i find out!!