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ef xr6 acceleration not smooth 

 

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 Post subject: ef xr6 acceleration not smooth
Posted: Sat Nov 01, 2008 11:10 pm 
Oompa Loompa
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in my ef when i take of in first it lacks power then once it gets past like 2000rpm you can feel the change. to try and explain it more its like im driving with a banana stuck in the exhaust and then it gets blown out and the power kicks back in, it also does it in second and third when going around corners. some days it drives better than others. ive done new muffler, high flow cat, fuel filter, fuel prssure regulator. any ideas?
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Posted: Sat Nov 01, 2008 11:22 pm 
Getting Side Ways
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How many Ks has the engine done?

Mine has a similar feel the way you describe but its done 200,000ks and probably needs the rings and or valve seals done. Losing compression somewhere in other words.

 

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Posted: Sat Nov 01, 2008 11:37 pm 
Oompa Loompa
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yeah mines done 220,000, so could just be the motor gettin a bit tired aye. maybe time for a rebuild.
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Posted: Sun Nov 02, 2008 1:30 am 
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plugs and leads.. sounds like a failing lead somewhere. Being EF, better hope its not a coil pack on its way out. But I would strongly suggest you look at leads and plugs, I had a similiar issue years ago with an EF XR, tooling round the streets it was crap, soon as you gave it a boot full it f@rt and carried on until over about 2200rpm, when enough load was able to pass through the failing lead. sounds like you have looked at things other than the leads and plugs side of things yeah?

Dave

 

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Posted: Sun Nov 02, 2008 2:17 am 
Getting Side Ways
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my cars abit like this when its cold, feels like it lags the hits powerband around 2000rpm
once it warms up its all smooth

 

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Posted: Sun Nov 02, 2008 9:44 am 
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wild_ef wrote:
my cars abit like this when its cold, feels like it lags the hits powerband around 2000rpm
once it warms up its all smooth
2 stroke falcon? awesome.. nah I know what you mean, but the symtoms from the OP sound like leads and plugs.

 

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Posted: Sun Nov 02, 2008 11:18 am 
Oompa Loompa
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yeahg ive done the leads, plugs, coil pack.
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Posted: Sun Nov 02, 2008 12:11 pm 
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Mine was doing it and i just got it serviced, the mechanic changed plugs + leads, fuel filter and did a carbon clean (said the injectors were very blocked)

might give you some ideas of what to look at?

 

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Posted: Sun Nov 02, 2008 12:27 pm 
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dc_todd wrote:
wild_ef wrote:
my cars abit like this when its cold, feels like it lags the hits powerband around 2000rpm
once it warms up its all smooth
2 stroke falcon? awesome.. nah I know what you mean, but the symtoms from the OP sound like leads and plugs.

HAHA yeah :D, i actually find it funny, feels like a turbo's kicking in :p

 

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Posted: Sun Nov 02, 2008 1:20 pm 
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or in my case, feels like a turbo is kicking in and not boosting cause i have blow by.. hope this is not the case with you.

 

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Posted: Sun Nov 02, 2008 5:43 pm 
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might sound silly... but if you havent already, clean your air filter. my ef was doing the exact same thing. cleaned the air filter and is smooth aceleration now.

 

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Posted: Sun Nov 02, 2008 8:24 pm 
Oompa Loompa
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ive had the injectors cleaned too lol. i have a k&n air filter, i just give it a blow out with the air compressor. would it make a difference to use one of those K&n filter cleanig kits?
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Posted: Sun Nov 02, 2008 8:45 pm 
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mine did exactly the same thing!

I changed leads. fuel filter. and plugs at once and it went away so im guessing its one of those, most likely the leads though as they were near factory..
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Posted: Mon Nov 03, 2008 9:49 am 
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Of course check all the obvious like plugs, filter, leads etc... Mine was exactly the same, wouldnt start properly, jumped around for the first few minutes each morning, i did everything inc. coil packs, fuel pump, injectors, fuel reg etc... Last week got an oxy sensor off ebay $67, coolant temp sensor from Ford $72 and problem completely fixed. Starts perfect, runs perfect. Give this a go.

 

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Posted: Mon Nov 03, 2008 7:46 pm 
Oompa Loompa
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have also put new oxygen and coolant temp sensor, i had a probelm with the idle going up and down a while ago and the new oxygen sensor fixed that problem.
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