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Author Topic: 50 60 mph probs  (Read 1320 times)

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trainastock

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50 60 mph probs
« on: 15 August 2009, 10:26:46 »
hi all
have a problem when increasing speed between 50 60 slight popping during accleration ,when i use sport mode nothing or when i floor it , does not happen at any other speed
any help would be great 
                                     cheers graham :y
sorry forgot to say its a auto
« Last Edit: 15 August 2009, 10:27:51 by trainastock »
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trainastock

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Re: 50 60 mph probs
« Reply #1 on: 16 August 2009, 12:02:16 »

update tok her for a long drive just had her in sports mode
problem not as bad am thinking could it be dodgy supermarket petrol  ??? 

any help and advice would be great cheers   :y :y
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mark.adams

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Re: 50 60 mph probs
« Reply #2 on: 16 August 2009, 12:22:35 »
supermarket petrol is always a possibility...
Any lights come on, hesitation, any other clues??
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trainastock

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Re: 50 60 mph probs
« Reply #3 on: 16 August 2009, 13:21:26 »
no lights drives ok in sports mode ,justs feels like petrol cant get threw unless i floor it ,
oil in gear box changed not long ago smooth threw the gears  no increased rews between 50 \60 no strain on engine  :y
« Last Edit: 16 August 2009, 13:32:10 by trainastock »
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3.2 manual

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Re: 50 60 mph probs
« Reply #4 on: 26 August 2009, 23:47:05 »
could be plugs, does it feel like its trying to go, but holding back? had this before. i use ngk equiv
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oh bugger, i thought that was a bit of wind!!!

trainastock

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Re: 50 60 mph probs update
« Reply #5 on: 28 August 2009, 16:12:26 »
problem getting worse its between 50 and 70 mph now  lack of power now has  lost  a bit of ooph now  using decent petrol now problem still there becuse of poping  sound had exhast check no probs there , any help would be great   spark plugs ????  like 3.2 man said ??  cheers   
« Last Edit: 28 August 2009, 16:13:00 by trainastock »
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hotel21

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Re: 50 60 mph probs
« Reply #6 on: 28 August 2009, 17:54:55 »
Air leaks can cause popping as the air/fuel mix varies, either when being drawn into the engine or sometimes, in the exhaust.  Exhaust is generally on the over-run when air is drawn into the exhaust system from a leaking joint/rust hole and the unburnt overich mix burns, giving the popping, if you follow.

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trainastock

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Re: 50 60 mph probs
« Reply #7 on: 28 August 2009, 18:24:00 »
the bloke at exhaust centre said exhausts  looks fine , a hole in the heat shield thats all , have to check the gaskets ???? is that the area to look  at , cheers
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3.2 manual

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Re: 50 60 mph probs
« Reply #8 on: 29 August 2009, 04:29:44 »
i agree with hotel, exhaust will make the noise, but if yours is ok, manifold gaskets can make a noise like very bad tappets and can cause popping, how suprised was i when i found that one, some years ago on a car, any codes in the computer?
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oh bugger, i thought that was a bit of wind!!!

trainastock

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Re: 50 60 mph probs
« Reply #9 on: 29 August 2009, 18:14:13 »
will do a check for  codes later cheers and let you know  :y
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