hestation problem please help
01 April 2006, 03:35 PM
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hestation problem please help
ok my car is playing up and i need your help to diagnose it.
here goes you just touch the throttle it accelerates fine,put your foot down and there is a hestaton at about 3000-4000 then it will clear and go fine.
This is only started happening and sometimes on start up it idles very low any ideas could these be connected in any way
here goes you just touch the throttle it accelerates fine,put your foot down and there is a hestaton at about 3000-4000 then it will clear and go fine.
This is only started happening and sometimes on start up it idles very low any ideas could these be connected in any way
01 April 2006, 04:39 PM
#2
ive had the same sort ov problems mainly on start up when cold ,its fine when warm.Took out coil packs and found a cracked one thought it may be that so cheak yours.I later had my car diognosed and found that the mass air flow meter is buggered,so i need a new one.Been told that this will cause a judder due to it sending the wrong signals i.e running to rich. Hope that helps mate.
01 April 2006, 07:47 PM
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Originally Posted by vallumlj
i take it the coil pack is the thing the 4 leads go into on top of the engine.
how do i check these do i need to un bolt anything
how do i check these do i need to un bolt anything
I would check the usual suspects like plugs and boost control solenoid. When was the car last serviced?
02 April 2006, 10:30 AM
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Originally Posted by vallumlj
ok my car is playing up and i need your help to diagnose it.
here goes you just touch the throttle it accelerates fine,put your foot down and there is a hestaton at about 3000-4000 then it will clear and go fine.
This is only started happening and sometimes on start up it idles very low any ideas could these be connected in any way
here goes you just touch the throttle it accelerates fine,put your foot down and there is a hestaton at about 3000-4000 then it will clear and go fine.
This is only started happening and sometimes on start up it idles very low any ideas could these be connected in any way
Just a thought..... Phill
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02 April 2006, 12:27 PM
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how hard are spark plugs to change on these and what ones are best to use.
i have been reading on hear. It also sounds like the boost solenoid. i am going to give that a go as well first.
i have been reading on hear. It also sounds like the boost solenoid. i am going to give that a go as well first.
02 April 2006, 12:29 PM
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just read this
i dont understand the wire bit i take it 2 green wires go to 2 black wires do i just connect the greens together for this process
Yep sounds about right, didn't connect the black wires though and didn't start the car.
As you said,
Pipes off
Sol. unbolted (bottom nut likes to go for a walk under the air filter assy.)
Connect green wires under dash
Get can of brake cleaner ready
Hold sol. in large rag
Turn on ign. DO NOT START THE ENGINE
All valves, sol. etc and fan start to cycle, so lots of clicking / whooshing going on.
At this point Sol. should be pulsing away, so holding it in the rag give it hell with the brake cleaner up both ports. Really give it a good internal soaking until you
A- get tired
B - Get completely covered in dirty fluid
C - fluid running clear out of sol. (and up arm / side of car) is clear.
Once satisfied give it a blast for luck then turn off ignition and let valve drain / dry out whilst turning your attention to the pipes.
Remove pipes one at a time (remember which one goes where!! think the bent ended one goes to the back ) and again give them hell with the brake cleaner, Let them dry out for a couple of minutes and then re-fit.
I also cleaned out the small Dia. hoses that run from the T piece to the actuator. If you have a look you will see bloody little clips that shred your fingers!!
Refit sol. (retrieve bottom nut from under air filter assy)
Complain about the ridiculous size of hand required to fit bottom nut (retrieve bottom nut from under air filter assy again) (remove air filter assy as an option - its a lot easier to get at the little bugg@r)
Re-fit pipes after routing back through adjustable cable ties
Start her up, and go for a bit of a run
As you said,
Pipes off
Sol. unbolted (bottom nut likes to go for a walk under the air filter assy.)
Connect green wires under dash
Get can of brake cleaner ready
Hold sol. in large rag
Turn on ign. DO NOT START THE ENGINE
All valves, sol. etc and fan start to cycle, so lots of clicking / whooshing going on.
At this point Sol. should be pulsing away, so holding it in the rag give it hell with the brake cleaner up both ports. Really give it a good internal soaking until you
A- get tired
B - Get completely covered in dirty fluid
C - fluid running clear out of sol. (and up arm / side of car) is clear.
Once satisfied give it a blast for luck then turn off ignition and let valve drain / dry out whilst turning your attention to the pipes.
Remove pipes one at a time (remember which one goes where!! think the bent ended one goes to the back ) and again give them hell with the brake cleaner, Let them dry out for a couple of minutes and then re-fit.
I also cleaned out the small Dia. hoses that run from the T piece to the actuator. If you have a look you will see bloody little clips that shred your fingers!!
Refit sol. (retrieve bottom nut from under air filter assy)
Complain about the ridiculous size of hand required to fit bottom nut (retrieve bottom nut from under air filter assy again) (remove air filter assy as an option - its a lot easier to get at the little bugg@r)
Re-fit pipes after routing back through adjustable cable ties
Start her up, and go for a bit of a run
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