does anyone know how to make a volvo 740 tick over evenly?

Question

runs well and always starts first time..2.0ltr injection seems to hunt on tickover..doesn't overheat...is slightly better if engine turned off and restarted..someone suggested dizzy cap and rotor arm..leads...air filter any ideas? cheers Richard

Answer 1

First try by cleaning the fuel delvery system. You should be able to by a good cleaner that you just add to your gas. Check all the belts and get an oil change. Check yu air filter too.

Answer 2

first service flame trap and inspect for broken vacuum hoses. next inspect where intake manifold mates to cyl. head for a cracked gasket [spray carb cleaner at and around sealing area while engine is at idle] if rpm's change you have a leak. if all shows good here move to ign componants and filters and replace as required if this does not take care of idle concerns have valve adjustment preformed at dealership [select fit shims are used] few independent shops stock these any more.

Answer 3

Yeah give it a good service oil, air, fuel filters. plugs and rotor arm and cap, hold back on the leads if there in good nick, see how you go on from there mate. try cleaning the throttle housing with some carb cleaner, if problem persist take it to your local Volvo dealer and ask them to check for dtc's,
Good luck!

Answer 4

firstly clean air filter but could be idle control valve also the 'butterfly'could be sticking,jus give a little spray with carb claner and wipe or put it on a computer and you soon find out

Answer 5

faulty leads or plugs or dissy cap if not them then injection side or faulty lambda sensor
but with out a PC to plug in your guess is as good as mine

Answer 6

taharnie gave an excellent answer, i checked with my partner, who is a vehicle technician and he said the same thing.