avmaldo

When i put my 89se auto into drive it clunks with a very harsh and loud sound. you can feel the whole car move when this happens. is this a hydrolic problem?

4dscPat

My guess is a bad motor mount. Does it clunk if you rapidly let off the accelerator when accelerating? Or when you press it down when coasting with your foot off?

avmaldo

yeah it does, damn i gues i need to replce that last mount i just replaced the other two. this one shouldn't be as hard though, it's the rear drivers side.
Is this one easy than others?

4dscPat

IDK, I've never done the job. I'm going to be replacing my motor mounts soon, as the weather is decent.

avmaldo

have fun, they can be a little frustrating but what isn't when you work on a car. The front right is pretty easy maybe a 4 hour job max, and the rear right is not to bad either. theres a lot of space to work with on the front and just enough on the back. i got mine from autozone and the holes were just a little off. I wish i knew about putting epoxy in the web area before i did mine.

avmaldo

well i now have all new mounts but it still clunks, nothing seemed to change.
I recently had the tranny rebuilt, and it didn't use to do this before that. maybe i should take it back?
But what else could it be?

aminus21

iTrader: (14)

????? please explain.. are you talking about stuff like polyurethane?

avmaldo

i don't exactly know how to do it, if i did i would have, but it was a recent thread on the forum so im sure someone will know.
Anyway what about the clunking?

disgruntled

iTrader: (7)

how long ago did you had your auto tranny rebuilt? If its around 10,000 miles, I would say check your tranny again, since some org members have experience rebuilt tranny failure BELOW that mileage. Also to try is to put your e-brake on, put your car in neutral, and rev the engine to see if there is any noise out of the ordinary, remember to do so slowly and progressively. If there is no out of the ordinary noise, and your car only makes a loud clunk when shifting into drive, then I would make sure that I check the tranny first. One more question, when you drive, did you notice any loss of power (i.e. slow acceleration when compared to normal?)

DanNY

iTrader: (14)

http://www.mr2sc.com/websites/tech/SolidMounts2.htm

DanNY

iTrader: (14)

wow 4 hours.

the clunk..does it do it when the engine is cold? how about when it's warm? more or less?

avmaldo

im only 17 and still just learning.

it does it more when it's cold. but i took a look at it while my girlfriend put it into drive and it looks like the rubber is to soft or something because the pivet point moves alot when put into drive.
Maybe i need tro replace it again.

alpicone

I havent had good luck with the Autozone motor mount. I had to replace it twice. The second time I got another mount and it has been fine.

eric93SE

iTrader: (1)

Check to see that you TPS is working properly. If you find that it needs to be replaced only buy this one from nissan. I've had problems with aftermarket.

avmaldo

i found a temporary way around the clunking, but im gonna call the tranny place tommorrow. Anyhow, when i put it in reverse it doesn't clunk and then when i switch it over to neutral and let it roll a little foward and then put it into drive it goes smoothly into gear.
maybe it just need to be adjusted a little.
Maybe tranny resistor problem?

DanNY

iTrader: (14)

sounds like your idle is too high when you pull the car into gear. like eric said check the TPS.

avmaldo

will check, just use a volt meter correct?

avmaldo

TPS was fine, a little corroded, but it had continuity. taking it back to the tranny place soon as i get my new tires and have time maybe monday. When you put it into drive the rpms are just about 1-1.1k then drop down to 800-700.

Is there some kind of adjustment on the tranny i can play with while i wait?

maxitech

iTrader: (7)

Stupid question: What is TPS?

DanNY

iTrader: (14)

throttle position sensor.

DanNY

iTrader: (14)

if the engine is at operating temp 1.1K is too high for an idle speed.

avmaldo

ok, i checked tps again and it was only reading like .6 ohms. shouldn't it be at like 30ohms?
Just to make sure the TPS on a VG is just under these wires here?

and incase cardomain is
tps, <---bottom pic