95 3.2 hesitation at low rpm

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Ceramicolive
Posts:18
Joined:Tue Oct 17, 2017 7:43 am
95 3.2 hesitation at low rpm

Postby Ceramicolive » Wed Nov 20, 2019 2:29 pm

I've a little issue with my 3.2 which started last week, I went out to the garage and started the car it coughed and spluttered a bit which is unusual for it as it normally starts up on the button, anyway we went out in it but it became immediately obvious it wasn't happy, struggles to rev and almost stalls between idle and 2/2500 rpm but seems to pick up fine after that. It's a manual so I am able to stop it stalling by dipping the clutch.

To the experts out there or anyone who has suffered similar symptoms what should I check first?

CPS, engine temp sensor, coil packs?

Brakebuster
Posts:3145
Joined:Tue Apr 18, 2006 1:17 pm
Location:Gloucester UK

Re: 95 3.2 hesitation at low rpm

Postby Brakebuster » Wed Nov 20, 2019 3:16 pm

first and cheapest,
check and clean the throttle body and butterfly valve, along with the idle speed regulating device on the intake manifold that is located by the TB , this also has an electrical stepper motor to electronically adjust to prevent stalling and allow more air under load etc,

both these items gum up with black residue causing ' breathing ' issues at idle and decelerating to a stop ,

BB
1989 5.3ltr V12 XJS Coupé FULLY RESTORED
2015 2.2TD Sportbrake in BRG and black leather
1994 3.2S XJ40 in Morocco Red with Doeskin interior

old cars
1999 4ltr Sovereign XJ8
2004 X-Type

User avatar
Ceramicolive
Posts:18
Joined:Tue Oct 17, 2017 7:43 am

Re: 95 3.2 hesitation at low rpm

Postby Ceramicolive » Wed Nov 20, 2019 4:00 pm

Thanks will do, I've run out of time for now and the car is stuck on the drive as it won't start anymore, strong smell of fuel so I think it's over fueling and flooded itself.


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