fast metronome sounding tranny

[Bancheeblazer]

My 400 transmission is making a very distinct "ticking" noise that gets louder with acceleration and in gear, not in park or neutral, thought it to be harmonic balancer. Parked it for a day only to find it had spilled all its transmission fluid thinking the seal has gone south. Any Ideas ?

 

[onetonbb74]

cracked flexplate was the culprit when mine was making a ticking sound, had it happen to 3 different cars/ trucks over the years...could also be something rubbing on the driveshaft like the exhaust hanger/muffler piece, had that happen as well. Another culprit, unskrew the speedometer and see if the noise goes away too, had a speedometer make similar noises that was annoying to all hell once I figured it out to the speedo I was a happy camper...

definately a bad seal for the tranny fluid leak.

 

[onetonbb74]

hit me up and we'll fix your metronome sounding tranny, glad to see your back and the Blazer is still alive Btw, you have the np208 right, that noise could be in the t-case as well, seen plenty of broken shift forks in those things that would make a noise you describe.