gearbox problem??

[ratz26]

i was driving down the main road between gin gin and bundaberg today and to get out of a dangerous situation i had to stomp my foot down and pour on the power, the car hit 130kmph and started jerking and lost power with each jerk, it nearly felt like the gearbox couldnt make up its mind whet it wanted to do ...anyone have any idea's?
oh yeah..its a 1991 VP series 1 wagon automatic

[ratz26]

anyone have any ideas at all ?

[Emackulation]

Yes I do. At 130, when you stomped it it wouda kicked down into 2nd gear, then held 2nd til 130 like my old VN, then just as my old VN did, jerked and lost kinda cut in and out while it was at high rpm, its because it wasn't engaging 3rd gear. I had to get a new gearbox to solve the problem.

[jas98]

yeh sounds like gear box problem...however try replaceing your sparkplugs and leads they may be breaking down under high speeds etc

also maybe fuel pump.....but gearbox problem is probly the cause...sorry

[immortality]

most likely stuck in 2nd gear and the engine was bouncing on the limiter

[Emackulation]

most likely stuck in 2nd gear and the engine was bouncing on the limiter

Yep, thats what was happening to me, it cuts in and out quite violently lol.

[ratz26]

ahh ok ..thought it was something to do with the gearbox, just wanted a 2nd opinion before i went spending $'s on it i cant afford..thanks everyone

[immortality]

yep, i learned the hard way that the tacho on the VN wasn't working properly, it will never read over 5000rpm yet i hit the limiter fairly hard in 2nd gear, almost like hitting a brick wall. fortunatly it was an easy fix for me, jsut hit the clutch a little earlier and shift to 3rd