Can anyone please make some suggestions, I have been posed with this question from a friend

 

After spending all my money changing the suspension and uprating the brakes, my autobox has developed a problem and I dont know what it could be......

 

the autobox wont change into 3rd gear unless i take 2nd to 8000rpm, then once in 3rd gear all is ok untill i lift off the accelerator pedal. when i do that i dont have engine braking, the rpm falls to idle untill i accelerate again. the overdrive is fine .

when in gear, all 4 gears are fine, they dont slip the oil level is ok and clean + the tps is ok as all the other gears change up and down fine.....

 

 

Thank you in advance for your suggestions

If it didnt change at all into third or was having serious problems I would say solonoid in the box.

 

Does it only do it from 2nd to third?

 

Might be worth checking the line pressure.

Can anyone please make some suggestions, I have been posed with this question from a friend

 

After spending all my money changing the suspension and uprating the brakes, my autobox has developed a problem and I dont know what it could be......

 

the autobox wont change into 3rd gear unless i take 2nd to 8000rpm, then once in 3rd gear all is ok untill i lift off the accelerator pedal. when i do that i dont have engine braking, the rpm falls to idle untill i accelerate again. the overdrive is fine .

when in gear, all 4 gears are fine, they dont slip the oil level is ok and clean + the tps is ok as all the other gears change up and down fine.....

 

 

Thank you in advance for your suggestions

 

 

8000rpm :shock: booooooooooooooooooom

today it got worse. Now even if i rev the engine into the rev limiter it won't change into 3rd.

so is it stands, 1st and 2nd are ok whether in 1st, 2nd or D.... it just won't change to 3rd.

 

One other thing, If I have the gear selector in 2nd and lift off the accelerator, I get engine braking. Its only when I am in D and I lift off the accelerator pedal, the rpm falls to idle.

I am pretty sure this is caused by the tranny letting go of 2nd and expecting to change into 3rd.

 

Is there a way to test the line pressure or the solinoids without going inside?

I was looking around the net for info on the tranny controller, to see if there is a way I can check the resistance of each solinoid but did'nt find any. Either way I think I will have to go inside and have a look.

One other thing, If I have the gear selector in 2nd and lift off the accelerator, I get engine braking. Its only when I am in D and I lift off the accelerator pedal, the rpm falls to idle.

I am pretty sure this is caused by the tranny letting go of 2nd and expecting to change into 3rd.

 

Been in four autos they have all done this so AFAIK its normal ;)

 

Check the online manual on this site on the rides faq etc buttons at the top. Also try autobox diagnostic. You could also get someone I beleive to check line pressure with a Consult, a few ppl have the software etc on the board.

 

If it doesnt change into third I would say the solonoid that controls 3rd + is fooked.

Been in four autos they have all done this so AFAIK its normal ;)

 

Check the online manual on this site on the rides faq etc buttons at the top. Also try autobox diagnostic. You could also get someone I beleive to check line pressure with a Consult, a few ppl have the software etc on the board.

 

If it doesnt change into third I would say the solonoid that controls 3rd + is fooked.

 

 

Agreed,had same probs,not going past 2nd,line solenoids were knackerd,and bands burnin out as a result :(

 

Tony

Thanks for all your help so far. He has checked the soienoids and they all seem ok. Had lost 1st gear as well, however fitting a new tranny cured that fault so we`re back to square 1. When sitting in neutral, and putting your foot on the brake, the rpm counter fluctuates (pulses). When accelerating briskly, the rev counter goes up to 9000rpm and then back down quickly to 1500rpm, asnd when sitting in neutral and putting the car into drive or reverse, the counter again flickers or pulses. I`m not sure if this problem(being electrical I think) has anything to do with the fact that I`m still having problems obtaining the gears. When the gearbox ecu is disconnected, the car will only drive in 2nd but the problem disappears with the rev counter. Please can anyone help, we think in the end it might have to be a manual conversion, but in the meantime if possible we`d like to try and sort this out, it`s so frustrating

 

Thanks in advance for your help

Has anbody got any ideas?

Is the trans oil burnt?

no its clean and not burnt

Thats good news, if its burnt its bad. Lets hope its electrical.....I will ask my brother if you like?

yes please

Thanks