Engine Bumbling

[smedzz]

brought a 2.8 v6 ghia galaxy worked perfect for a day and then it atarted to hunt when idleing it revs through this at speed,speed not being an issue iy will do 70 no problem,just wondering if its coil pack spark plugs or leads,anything above that not qualified enough to know engine to complex with all those sensors etc :lol:

[dave21]

possibly idle /air sensor if ur car is hunting erractically wont be leads as car would hunt at higher speeds get a tech 2 test done regards dave

[Rusty Nail]

Hi Smedzz

 

Have a look at the main inlet butterfly valve (where the throttle cable operates). Over time this usually gets coated with a sticky black oil type substance.

 

This 'stickyness' can prevent the idle control motor from operating smoothly so giving an erratic idle.

 

Get a can of injector/carb cleaner from Halfords or similar and clean the assembly using the spray and a cloth.

 

This has worked for me on many cars in the past, so that is where I would start, and it's a cheap fix.

 

Good luck,

[deek]

sounds like a simple vacuum leak on the inlet manifold. check all hoses/connections to the inlet manifold, from the air flow meter to the head. alternatively it could be a build up of carbon/muck on the throttle body, not allowing the butterfly to fully close at idle(allowing more air into mainfold). this is easily remedied with some carb cleaner

[smedzz]

hi all, just to put you all in the picture went out in car this morning and the ****ing things packed up on me it just stopped dead while reversing all lights come on dash just doesnt atempt to turnover,even got someone to give me a jump start but no luck,not even clicking on starter motor when turning it over. wondered if ita an electrical fault,checked fuses but not relays. :lol: :lol: :lol: