I have an EA falcon GL 1990 series 2, 5 speed manual, its done 213,000 km’s and has a CPI 3.9 engine in it.
When my car is idling the engine misses and shakes heaps and at low revs in any gear when cursing along or just slowing down it quirks violently. At about 2000 rpm and above its smooth and there doesn’t seem to be a problem. It’s been serviced recently and still has 5000km before the next one is due. Last week I changed the plugs and leads hoping that would fix the problem. It didn’t! The car doesn’t seem use any more petrol or oil then usual and isn’t overheating at all.
Does any one have any idea what it could be and how much would it cost to fix, or ideally if you can do it your self, but keeping in mind I have very little mechanical knowledge.
Could be a few things, not what you wanted to hear is it
Might pay to have a look at your engine mounts.
Roughly what speed would you say it idles at? i.e. too low?
Does the engine sound any different? Usually if it's MAP sensor it can develop a nice v8 note!
Best to get somebody to retrieve the codes off the computer, that *should* tell you if it's one of the sensors.
What colour is the exhaust?
Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes
Pacemaker headers + 2.5" exhaust
EF Fairmont interior
Lowered King springs
5 speed manual
i agree could be MAp sensor.. but normally it will blow fuel out the exhaust.. check the plug and make sure its not loose, got water or dirt in it.. the plug sits upright and plugs in from the bottom.. try unplugging it while its running and see if engine condition worstens or stays the same.. it will run like a bag of crap unplugged
when was the last time u cleaned ur carby or anything like that... check the carby... i had one was fine when i was over about 2500 but as soon as it was under or was idling used to almost stall and felt like the engine was about to shake out...
wasnt getting enough fuel at low speeds...
got a new one and it worked....
red ea s-pack 5 speed, engine, 4 wheels + spare, steering wheel, brakes, suspension, exhaust, 20w x 4 stock standerd stereo system, diff (rear wheel one), clutch, seats (including 2 retractable front seats) all with seat belts. Performance Mods : air filter removed, fuel filter removed, some guards taken off for weight reduction.
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