auto box I think

simondhopkins · 12th January 2022, 09:50

Hi, Molly (diesel auto) is being an utter pain in the backside lately.

She was hesitating like air was getting in the system not going above certain revs.

Looked at under bonnet pump, was making noises so replaced that aswell as the the intank one with items from DMGRS.

Was ok for a short while but its back.

It feels like when its trying to change from 2nd to 3rd under load its getting if that makes sense, dropping power and just not wanting to change.
I do find pulling the shifter to 2 then back to D makes her change to 3rd.

Would this be the 2/4 duty solenoid? I have done the resistance test and its giving the values in the how-to on here.

She's on 136k, plenums never been flooded since I've owned here and there is no signs of corrosion on the wiring loom at the ecu or on the twist plugs to the box.

Money is tight at the moment so don't want to have to keep throwing parts at her that she don't need.

One thing I did notice, but I was putting it down to an el cheapo elm327 was sometimes the rev readout on my phone would go nuts into the 10-13k rpm but the rev counter on the dash would be normal so probably the elm as my toaf unit don't do it.

12th January 2022, 09:50	#1
simondhopkins Loves to post Vauxhall Vectra C Join Date: Jul 2016 Location: Burnley Posts: 445 Thanks: 179 Thanked 88 Times in 62 Posts	auto box I think Hi, Molly (diesel auto) is being an utter pain in the backside lately. She was hesitating like air was getting in the system not going above certain revs. Looked at under bonnet pump, was making noises so replaced that aswell as the the intank one with items from DMGRS. Was ok for a short while but its back. It feels like when its trying to change from 2nd to 3rd under load its getting if that makes sense, dropping power and just not wanting to change. I do find pulling the shifter to 2 then back to D makes her change to 3rd. Would this be the 2/4 duty solenoid? I have done the resistance test and its giving the values in the how-to on here. She's on 136k, plenums never been flooded since I've owned here and there is no signs of corrosion on the wiring loom at the ecu or on the twist plugs to the box. Money is tight at the moment so don't want to have to keep throwing parts at her that she don't need. One thing I did notice, but I was putting it down to an el cheapo elm327 was sometimes the rev readout on my phone would go nuts into the 10-13k rpm but the rev counter on the dash would be normal so probably the elm as my toaf unit don't do it.