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Ford 5L V8 Pinging unload 

 

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 Post subject: Ford 5L V8 Pinging unload
Posted: Sat Sep 20, 2008 9:26 am 
Oompa Loompa
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My Fairmont wagon 5L seems to ping under load, when accelerating and up hills. Its ok under light throttle though.
Also takes longer to start than it should, cold or hot. Should fire up pretty much straight away!
The timing is correct, plugs/leads good, MAF good.
Is it possible the fuel pump or injectors??? Its running on petrol only.

My previous 5L LTD ran perfect with absolutely no hesitation on excellaration, all i did was clean the MAF. Both done about same kms.

Thanks if you have any clues.
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Posted: Sat Sep 20, 2008 11:49 am 
Tyre Shredder
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could be cheap fuel.

 

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Posted: Sat Sep 20, 2008 3:57 pm 
Getting Side Ways
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Fuel pressure? Change the filter and see how it goes.

Mike

 

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Posted: Sat Sep 20, 2008 4:08 pm 
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Mine pings if i use 92 octane fuel so i just use 98 or 100 instead. Changing the filters a good idea too. I changed mine recently and i reckon it was the original one that it left the factory with

 

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Posted: Sat Sep 20, 2008 5:19 pm 
Getting Side Ways
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check the vacuum hose leaving the distributor and heading under the manifold. My mates v8 pinged and when the mechanic found this hose was split and replaced it, no more pinging. :lol:

 

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Posted: Sat Sep 20, 2008 8:15 pm 
Getting Side Ways
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My car use to have that all the time, you know it's not good for the engine, but it sounds terrible so you just have to fix it cause of that. It use to happen to me especially when the weather gets warmer. I'd be inclined to swap the MAF and see how you go. Then replace plugs, make sure you have the correct ones. Timing should be 30 degrees. But I found that 27-28 degrees for my stock engine prevented pinging.

 

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Posted: Sun Sep 21, 2008 12:53 am 
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I run 34-35 degrees timing on my eb but i run 98 all the time, also the comp isnt too high so that helps :lol:

 

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Posted: Sun Sep 21, 2008 4:07 pm 
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pugsley wrote:
check the vacuum hose leaving the distributor and heading under the manifold. My mates v8 pinged and when the mechanic found this hose was split and replaced it, no more pinging. :lol:


No vacuum advance on this motor.

 

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Posted: Sun Sep 21, 2008 6:07 pm 
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I'm still thinking it's either fuel pressure or MAF. An intake leak somewhere will also contribute to rough running due to a lean mixture.

Mike

 

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 Post subject: Pinging resolved!
Posted: Tue Sep 23, 2008 9:39 pm 
Oompa Loompa
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I backed off the timing a little and the pinging seems to have disappeared and the same time engine runs smoother and have more usable power and trans shifts nicer.
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Posted: Tue Sep 23, 2008 10:04 pm 
Getting Side Ways
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Good to hear youv'e solved it.

Run her on 98 and you'll get nicer running and starts. I'm getting 14.9L/100 city cycle in my EF!

Mike

 

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Posted: Wed Sep 24, 2008 2:50 pm 
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Most definitely run on 98, because mine gets 14.5-14.7 around the city.
I use caltex vortex 98 because it gets better mileage than ultimate in my car.

 

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Posted: Wed Sep 24, 2008 8:16 pm 
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... and you can use the Woolies fuel vouchers for it can't ya Shannon! ;)

98 Always in mine, averages 14.8 stop/start driving.

 

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Posted: Thu Sep 25, 2008 1:30 pm 
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BOTTLEDUP wrote:
... and you can use the Woolies fuel vouchers for it can't ya Shannon! ;)

98 Always in mine, averages 14.8 stop/start driving.

Haha never! Gillian uses the vouchers when she fills up the ef :lol:
So how many ks do you get to a tank then dave, my odometer is busted in the eb.

 

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