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Car Forum / Honda Cars / July 2005Downshifting Grinding noise
I have a '99 Civic (manual trans) with 68K miles. When I was driving on a long trip this weekend, with a lot of stop and go traffic, my car started to make a loud grinding sound and rattling when I would use the transmission to slow down the car- either downshifting or taking my foot off the gas. It would not make the sound when I used the brake to slow down. Any ideas? > I have a '99 Civic (manual trans) with 68K miles. When I was driving on a > long trip this weekend, with a lot of stop and go traffic, my car started > to make a loud grinding sound and rattling when I would use the > transmission to slow down the car- either downshifting or taking my foot > off the gas. It would not make the sound when I used the brake to slow > down. Any ideas? --------------------------- Your Manual Tranny Fluid is six years / 68,000 miles old. The brake fluid in your clutch hydraulics is probably also overdue to be changed. Those two items would seem to be a good place to start. What does your Owner's Manual say? 'Curly' > I have a '99 Civic (manual trans) with 68K miles. When I was driving on a > long trip this weekend, with a lot of stop and go traffic, my car started > to make a loud grinding sound and rattling when I would use the > transmission to slow down the car- either downshifting or taking my foot > off the gas. It would not make the sound when I used the brake to slow > down. Any ideas? as curly says, check lube and operation of clutch. if both are good, your synchros are gone. $$$'s. > I have a '99 Civic (manual trans) with 68K miles. When I was driving on a > long trip this weekend, with a lot of stop and go traffic, my car started > to make a loud grinding sound and rattling when I would use the > transmission to slow down the car- either downshifting or taking my foot > off the gas. It would not make the sound when I used the brake to slow > down. Any ideas? check the level of the fluid in the clutch master cylinder. ill bet its low. > > I have a '99 Civic (manual trans) with 68K miles. When I was driving on a > > long trip this weekend, with a lot of stop and go traffic, my car started [quoted text clipped - 5 lines] > check the level of the fluid in the clutch master cylinder. ill bet its > low. I'm in the same boat. I went to the Honda dealership to get my clutch oil changed (for the 2nd time since owning the car). Turns out, that my clutch oil was low and the Honda mechanic recommends new master & slave cylinder and a overhaul for the clutch master cylinder. After 245,000km of hard driving, you'd think a simple oil change should do the job. Oh well.. The syncro is shot for third gear (only crunches when I'm racing..but I'm sure it'll get worst). Considering that I have been ruff with the tranny, would it be wise to also get a new clutch while their working on the clutch master cylinder? So far, everything under the hood is still original (except for spark plug and air filter) and this will be the first time It'll be going for surgery because of failed parts... I'm going to have to get used to the fact that the car isn't indestructible...*sigh* Pars 98 Civic Hatch >>>I have a '99 Civic (manual trans) with 68K miles. When I was driving on > [quoted text clipped - 30 lines] > Pars > 98 Civic Hatch this is where you can teach yourself to double-clutch effectively! seriously, you can keep a shot synchro going indefinitely if you do. > > I'm in the same boat. I went to the Honda dealership to get my clutch oil > > changed (for the 2nd time since owning the car). Turns out, that my clutch [quoted text clipped - 17 lines] > this is where you can teach yourself to double-clutch effectively! > seriously, you can keep a shot synchro going indefinitely if you do. Yep, looks like I might have to become an expert at it. But for now, I'm going to have to avoid drag races that requires 3rd gear. Downshifting from 5 to 3 is still smooth since I'm good at rev matching....so I can still squeeze some fun out of 3rd. But once third is completely gone, I'm not going to be a happy camper, since it's my favorite gear. Pars >>>I'm in the same boat. I went to the Honda dealership to get my clutch > [quoted text clipped - 46 lines] > > Pars i drove a car with no 2nd synchro for years. once i got the hang of it, it was easy. which was great because it meant my sister would never borrow my car. i don't drive a stick that much now, but when i do, i still find myself occasionally doing that second kick on the clutch. i think it's easy once you understand what's going on - the principle is that you either spin up or spin down with the clutch engaged in neutral to match the ratio speeds, then engage gear. second is my favorite gear in my 98 civic, hehe it tops out at 110km/h. Then again 3rd is good too, takes me all the way to 160km. I got her goin to 195 in 4th the other day too. WEEEEEEEEEEEE. t >> > I'm in the same boat. I went to the Honda dealership to get my clutch oil >> > changed (for the 2nd time since owning the car). Turns out, that my clutch [quoted text clipped - 9 lines] > >Pars > second is my favorite gear in my 98 civic, hehe it tops out at 110km/h. Then > again 3rd is good too, takes me all the way to 160km. I got her goin to 195 > in 4th the other day too. WEEEEEEEEEEEE. Yep, 195 km/hr and then the speed limit kicks in....which is a bummer...cause on a good day I probably could squeeze another 10km/hr out of that DX engine. I tend to do alot of highway, so third is spaced perfectly for 'dog fighting'. Pars > t > [quoted text clipped - 11 lines] > > > >Pars > I'm in the same boat. I went to the Honda dealership to get my clutch oil > changed (for the 2nd time since owning the car). Turns out, that my clutch > oil was low and the Honda mechanic recommends new master & slave cylinder > and a overhaul for the clutch master cylinder. After 245,000km of hard > driving, you'd think a simple oil change should do the job. Oh well.. What the hell is an "overhaul for a clutch master cylinder"--especially after you get a new one? Methinks you have the terminology wrong for what the overhaul is on. The master cylinder is the thing your clutch pedal is connected to--nowhere near the actual clutch. It's easy to replace, as is the slave cylinder, which is attached to the tranny and activates the clutch release. I just did both on my 94 Civic. BTW, there's brake fluid in the clutch hydraulics, oil in your tranny. Better hope there's no oil in your clutch... ;-) > would it be wise to also get a new clutch while their working on the clutch > master cylinder? If whatever they're wanting to do the overhaul on involves removing the tranny, have them inspect the clutch for wear and decide then. Tegger's still on his original clutch at 400,000 km... > > I'm in the same boat. I went to the Honda dealership to get my clutch oil > > changed (for the 2nd time since owning the car). Turns out, that my clutch [quoted text clipped - 8 lines] > replace, as is the slave cylinder, which is attached to the tranny and > activates the clutch release. I just did both on my 94 Civic. The mechanic also said that the master and slave cylinder were leaking and the clutch pedal was very stiff (but not stiff enough to hamper the lead in my left foot). > BTW, there's brake fluid in the clutch hydraulics, oil in your tranny. > Better hope there's no oil in your clutch... ;-) Yep, they charged me about $6 for the brake oil. The tranny oil was more expensive at $21 for 3 Litres. > > would it be wise to also get a new clutch while their working on the clutch > > master cylinder? > > If whatever they're wanting to do the overhaul on involves removing the > tranny, have them inspect the clutch for wear and decide then. Tegger's > still on his original clutch at 400,000 km... If I wasn't aggressive with the tranny, I'm sure the thing would probably would last forever. Considering that the engagement point for my clutch has gone all the way down to the floor and switching into first or reverse is a little tricky, something is not right. Also, the low engagement point isn't doing my tranny any good, since it's more difficult to go all the way down on the clutch when executing some fast shifting (which is a common occurrence in my case). Pars > The mechanic also said that the master and slave cylinder were leaking and > the clutch pedal was very stiff (but not stiff enough to hamper the lead in > my left foot). Mine was feeling a bit weird when I replaced the master/slave cylinders. and the master was leaking here as well. Dealer said the slave was leaking too when I had the car inspeced prior to purchase, but I didn't see any evidence of that myself. >>If whatever they're wanting to do the overhaul on involves removing the >>tranny, have them inspect the clutch for wear and decide then. Tegger's [quoted text clipped - 4 lines] > gone all the way down to the floor and switching into first or reverse is a > little tricky, something is not right. Maybe not forever, as there is wear however you drive. The fact that you have to push the pedal all the way to the floor to disengage the clutch could merely be the result of the low fluid and failing cylinders. Since the master and slave cylinders are so easy to replace--I'm relatively new to automotive work, but am a pretty handy guy in general--and since replacing them doesn't involve dropping the tranny, I'd start with those and see how it feels after a pedal adjustment. The job can be done in less than 2 hours. If you want to do it yourself--really, it's easy--see my post "clutch master & slave cylinder replacement notes (94 Civic EX)" (7/8/2005). Helpful to have a Helm manual, too--an excellent investment. > > The mechanic also said that the master and slave cylinder were leaking and > > the clutch pedal was very stiff (but not stiff enough to hamper the lead in [quoted text clipped - 26 lines] > replacement notes (94 Civic EX)" (7/8/2005). Helpful to have a Helm > manual, too--an excellent investment. I'm taking the car on a long drive for the long weekend (about 20hrs of highway driving), so I was also planning on getting the clutch replaced as an added insurance. My mechanic quoted me about $600 for the job (using Honda parts) compared to the Honda dealership that quoted $1500 for clutch overhaul. Pars > I'm taking the car on a long drive for the long weekend (about 20hrs of > highway driving), so I was also planning on getting the clutch replaced as > an added insurance. My mechanic quoted me about $600 for the job (using > Honda parts) compared to the Honda dealership that quoted $1500 for clutch > overhaul. That's pretty funny, $1500. $600 sounds more appropriate. >>>I'm in the same boat. I went to the Honda dealership to get my clutch > [quoted text clipped - 26 lines] > > Yep, they charged me about $6 for the brake oil. technically, it's not an oil for a honda, it's a glycol-ether. oils are used in a lot of hydraulic systems, but generally not for car braking/clutch systems & definitely not here. sorry, pedant city. > The tranny oil was more > expensive at $21 for 3 Litres. [quoted text clipped - 18 lines] > > Pars > >>BTW, there's brake fluid in the clutch hydraulics, oil in your tranny. > >>Better hope there's no oil in your clutch... ;-) [quoted text clipped - 4 lines] > used in a lot of hydraulic systems, but generally not for car > braking/clutch systems & definitely not here. sorry, pedant city. Ok, Fluid not oil. Once upon a time I used to know what all that meant...All the Si-Fi Novels, bad action flicks and adrenalin pumping Xbox games has rotten my brain. There very little stuff left over from my old chemistry classes. Pars > > The tranny oil was more > > expensive at $21 for 3 Litres. [quoted text clipped - 18 lines] > > > > Pars > Ok, Fluid not oil. Once upon a time I used to know what all that meant...All > the Si-Fi Novels, bad action flicks and adrenalin pumping Xbox games has > rotten my brain. There very little stuff left over from my old chemistry > classes. LOL! |
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