Burtie2904
Active Member
Hi All,
My 3.5 V8 recently went for a service and an MOT, it had its throttle cable replaced and thats about it.
It now wont idle like it used to, idle is very inconsistent, i keep adjusting the idle rpm screw and it then will be fine for a bit but then will either be idling too high or idle to low and begin to stall the next time it gets started up. I have noticed the idle falls a lot if i have the electric fans on (drawing currents and reducing spark) but even without that it changed from 400 ish and stalling, to 800 from hour to hour. The next symptom is when accelerating/after you floor it or get going from idle it puffs out a noticable amount of black ish smoke (running too rich?), smokes when increasing throttle, not when at throttle. Also not sure if i just hadnt noticed it before but it seems new, when the air filter is off you can hear a hissing like sound which seems to be fuel related (rises with throttle position before revs rise), that might just be normal but i dont remember it from before.
Also its a 1988 3.5 with stock twin SUs.
And ideas appreciated.
My 3.5 V8 recently went for a service and an MOT, it had its throttle cable replaced and thats about it.
It now wont idle like it used to, idle is very inconsistent, i keep adjusting the idle rpm screw and it then will be fine for a bit but then will either be idling too high or idle to low and begin to stall the next time it gets started up. I have noticed the idle falls a lot if i have the electric fans on (drawing currents and reducing spark) but even without that it changed from 400 ish and stalling, to 800 from hour to hour. The next symptom is when accelerating/after you floor it or get going from idle it puffs out a noticable amount of black ish smoke (running too rich?), smokes when increasing throttle, not when at throttle. Also not sure if i just hadnt noticed it before but it seems new, when the air filter is off you can hear a hissing like sound which seems to be fuel related (rises with throttle position before revs rise), that might just be normal but i dont remember it from before.
Also its a 1988 3.5 with stock twin SUs.
And ideas appreciated.