700R4 Problem, 98 Chevrolet

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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=70431
Printed Date: May 04, 2024 at 9:31 PM

Topic: 700R4 Problem, 98 Chevrolet

Posted By: djv1
Subject: 700R4 Problem, 98 Chevrolet
Date Posted: January 09, 2006 at 9:24 PM

I have a 98 Chevrolet with a electronic 700R4 in it and at about 100-110km/h I get a knocking sound, does anybody know what the problem maybe?

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JVC deck
6.5in MB Quarts
Rockford 3001M amp
2 12in Kicker Comps
Sirus Sattilte Radio

Replies:

Posted By: adrianspeeder
Date Posted: January 11, 2006 at 7:54 PM

Try the tranny section of www.chevytruckworld.com

Sorry, im a ford guy.

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'02 F250 PSD, '97 F-150, '71 F-100, '66 F-250, '93, '92, '88, '84 Broncos

Penn State electrical engineerin' major

Posted By: fingaz22
Date Posted: January 11, 2006 at 9:08 PM

700r4"s are very commonly used in most rear wheel drive 8 cylinders. as i've had my share and have one now in my z28. i believe they are junk as most other people do in my bussness. always having to rebuild them. thats why i have the 350 turbo on the shell waiting untill i finish the 383 block thats going in.

but i believe your problem may not be in the trannie. more like rear end or u joint. but of course from the info you have posted i can't tell much.

give exact time it does it. start from stop. as you drive, give some drivablity conditions and i will see if i can help.

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JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs

Posted By: 83malibuRida
Date Posted: January 13, 2006 at 10:59 AM

as far as I know trannies dont make knocking sounds, a possible whine but no knock. what makes you think its the trans? is it shifting slow or harder than usual? little info. I did have a friend that was having problems with the ball bearings on his front end. hope that helps

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Nick Scott

Posted By: djv1
Date Posted: January 30, 2006 at 11:14 PM

Found Out what my knocking sound was, front u-joint, fixed it but I still have a problem with hard shifting from first to 2nd gear when I hammer on it, and when I say hard shift I mean that it woould toss a salad when it shifhts, any ideas?

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JVC deck
6.5in MB Quarts
Rockford 3001M amp
2 12in Kicker Comps
Sirus Sattilte Radio

Posted By: fingaz22
Date Posted: January 31, 2006 at 9:00 AM

thankx for the update on the fix.

for the new problem well sounds like the bands are starting to slip. but if it is only doing it in that order. you could try a lucas trannie fluid.

if i was you i would check the kick down cable for proper operation,like not being stuck or restricted by a bend in the cable. check for any rough spots.