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Car hesitates! 

 

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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 4:05 pm 
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I had a similar issue; it hesitated for few seconds (ran rough), then was fine for days (or hundreds of km).
As suggested from those here, I changed the plugs and leads, and finally the coil -problem solved.
Unfortunately, you will have to go through things to find out, but starting with the cheapest things, like plugs, then leads, etc., is the most obvious way to go.
Good luck. As you never know if it's gonna just stop, it's a total pain in the a***.

 

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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 7:06 pm 
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With the ECU resetting, would it be worth while for the OP to just changing the ECU as a cheap elimination option? They cant be too expensive at the wreckers and are cheap enough on ebay and you always have a spare if its not the issue.
Did the OP check today to see if it did it in gear and not in just in drive?
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 7:12 pm 
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Thanks I for your help people, I will consider looking into changing things around these school holidays which just started.. YEAAA.

I tried in first gear this morning and it didn't do it, if it did not as much as usual.
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 7:22 pm 
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Then change the ECU for the sake of maybe $50. There is a tech doc about ECU codes on here and by using that you will be able to see what ecu you need. Either that or if you know someone who has a spare you can try then do that. The ECU is located behind the front passenger side kick panel and an easy swap over.
Unless someone else on here can come up with a better idea? I have only had one EL and it was that stuffed it wasn't worth repairing, so I am no expert.
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 7:42 pm 
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The ECU should be the last thing done after confirming 100% that all other issues are looked at first. Even then I've rarely heard of an ecu just dying all of a sudden.

 

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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 8:06 pm 
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MAD had said, "I generally find after an ECU reset it is better for a few days, then gets back in to the habit." thats what led me to the ecu. With all the BCm issues E series have I would think the solder in the Ecu's might do the same. Thats why I went the way of the ECU.
If it only does it in drive you would think it would have to be a tranny related because you still get the same load on the car in 1st as you do in drive. I would have thought to if it was spark related it would do it in other gears aswell
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 8:17 pm 
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Fair enough. Will be interesting to know what the cause is.
Personally I'd still do ecu after the basics are checked. Your advice is still a possible scenario.

 

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93 EB II Fairmon8 with 17' EL GT's / Clear indicators / H.I.Ds / Sports exhaust / Lowered 2' / K&N / XR6 ECU.
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 8:23 pm 
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Whilst you're messing around during you're break throw a nice big earth strap from battery to body.
They always need a upgrade.
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 8:27 pm 
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One thing too, I aint a qualified mechanic or an auto elec. All I am is a bloke trying to help, so if someone else who has more skills than me can shed some light for this guy please do. It sucks a** when your cars playing up and you dont know the first place to look, Fordmods helped me and if I can return the favor then great but once again Im not a tech
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 8:46 pm 
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I ran an extra earth from the starter motor mounting bolt to the chassis rail, and one from the battery earth to the cylinder head.....with a 12V DC system, extra earths doesn't hurt it.

 

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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 9:08 pm 
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Helps stop the gauges dancing around and lights dimming with a large stereo alot.
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 Post subject: Re: Car hesitates!
Posted: Fri Dec 07, 2012 10:39 pm 
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Alrighty I will look into mucking around over the holidays with the ECU and making another earth, one thing I will be doing is getting a sound system over the holidays so another earth would do justice, thanks again.
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 Post subject: Re: Car hesitates!
Posted: Sat Dec 08, 2012 1:26 pm 
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Tried again today, it hesitates a little in 1st.
The car will only hesitate in first when it is cold.
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 Post subject: Re: Car hesitates!
Posted: Sat Dec 08, 2012 4:44 pm 
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Sounds like a fluid problem to me. Burn trans fluid or maybe it's a little low. What's the fluid like?
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 Post subject: Re: Car hesitates!
Posted: Sat Dec 08, 2012 4:50 pm 
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Pakrat wrote:
Sounds like a fluid problem to me. Burn trans fluid or maybe it's a little low. What's the fluid like?

Thats a great point. Sometimes small s**t like that can end up being the problem and its a bitter pill to swallow after spending big dosh on stuff that never needed to be replaced in the first place. Nice one.
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