There are many reasons for loose power and hard starting.
Bad fuel or your fuel filter full of dirty, electric fuel pump not giving good pressure , dirty in fuel tank.
repaire these items .and contact me later.
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is there a way to increase the tick over speed if you can increase this it will be ok some times the metal bar that the throttle wire is atatched to bends slightley or the screw comes lose and it moves causing it to tick over more slowley
Prognosis is really bad, hate to tell you. Ticking comes from the valve lifters, losing lubrication due to lack of pressure and running dry. At redlights, when revs are at idle, oil pressure drops a lot, and engine really suffers. Have the vehicle taken immediately to a shop for proper diagnose and to see if engine can still be saved. The loss of power comes from the valves not actuating properly. Hydraulic lifters need oil at a decent pressure to "charge" , and if not charged, they will stay compressed, ruining valve lifting operation.
Bucking and spitting indicates a possible fuel delivery or contamination problem (water in fuel) after sitting for long periods. This is a common problem with ethanol enhanced fuel. The ticking and vacuum issues indicate a clogged catalytic converter. The ticking is actually an exhaust leak created by the clogged cat. The fuel problem requires cleaning of the tank and fuel lines and replace fuel filter; also check fuel pressure.Remove the catalytic converter and test drive the car for good performance to test the cat problem or take it to a national muffler repair chain such as midas or meiniki for testing.
firstly the rough idel and poor power will be the air mass sensor or a air pipe sucking in too much air. however it could also relate to the sticking in park. being automatic it has a torque converter that basically transfers the power from the engine to the gear bos making drive. when these start to go you wil get issues with sticking in park, high and erratic idle and a ticking noise.
I would have the converter checked first it could be that the system is in need of a fluid change and it will start to clot up in cold weather so do have it flushed through and bleed the entire system, this will be much cheaper than a new torque conveter as they are about $300 to $400 at worst.
You would also loose power through this as the clutch would spin and sound like you where really on the gas when in fact it is not transfering the engine power to the gearbox.