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Slow revving T4

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Old Jan 12th, 2020, 10:14   #1
genghisk
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Default Slow revving T4

Morning guys.

I've got nothing to compare to as I've never driven another T4 but I think mine seems to rev slowly or at least slower than I'd expect. Also it seems to take an age for the turbo to kick in. Any common faults I should look at first?
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Old Jan 12th, 2020, 12:18   #2
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Morning guys.

I've got nothing to compare to as I've never driven another T4 but I think mine seems to rev slowly or at least slower than I'd expect. Also it seems to take an age for the turbo to kick in. Any common faults I should look at first?
if you put some coins in the compartment above the radio they should shoot out when you accelerate in second gear at full throttle !

Most likely low fuel pressure , the pump on these seems to wear out over 100,000 miles .
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Old Jan 12th, 2020, 14:25   #3
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Ok. Well it's not slow but it's not as fast as you guys make out it should. It's on 80k with full service history. Its had loads of work done over the years. Is the fuel pump a big job on these?
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Old Jan 12th, 2020, 15:30   #4
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Ok. Well it's not slow but it's not as fast as you guys make out it should. It's on 80k with full service history. Its had loads of work done over the years. Is the fuel pump a big job on these?
No not a big job , but you need to get the fuel pressure checked at 5000 rpm at full power and make sure it maintains just over 3.5 bar when doing so .
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Old Jan 12th, 2020, 16:28   #5
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genghisk, have you actually owned the car for long or is it a recent purchase?

If new, what was it like on the test drive?

If longer owned, has it always been this way?

Is it auto or manual?

Might help to narrow down if there's anything up.

Also is the CEL on? Even if not, if you can plug in an ODB checker (see ebay for a great selection) you'll be able to check for codes etc even if they're not firing off the CEL.

... & yes, the "flying coins test" is a good one ... that plus a bit of scrabbling across the roadway left-right if you're on a wet patch when booting it!
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Old Jan 12th, 2020, 17:09   #6
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Cheers for the replies everyone. I bought the car on friday. 200miles away from home so I did have a good drive home albeit safe and steady as I didn't know the car. So between 60 and 90mph on average. It pulls well between these speeds but the does seem to be aflat spot around say 4500 to 5500 rpm. 0 to 60 also seems average. I've got a Honda civic type s ( for sale btw) 160bhp and cant really see much difference. Certainly not the roaring get aways you lads seem to get. I'll get it plugged in and see what readings comeback.
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Old Jan 12th, 2020, 18:17   #7
walshawwilly
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I hope it isn't a 2.0t badged up as a t4, not unheard of!!!
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Old Jan 12th, 2020, 18:54   #8
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Might just need a good service.
Theyre only 200hp so maybe youre expecting too much?
As above get the fuel pump pressure checked, service it, get it on the rollers for about £40ish for a power run and this'll indicate whether its healthy or not.
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Old Jan 12th, 2020, 20:03   #9
genghisk
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I hope it isn't a 2.0t badged up as a t4, not unheard of!!!
Its t4 CD on the log book. It's got full service history and it doesn't feel great anyway so I'm guessing it's a t4 but needs some TLC. Do the 2 engines look the same though?
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Old Jan 12th, 2020, 20:05   #10
genghisk
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Might just need a good service.
Theyre only 200hp so maybe youre expecting too much?
As above get the fuel pump pressure checked, service it, get it on the rollers for about £40ish for a power run and this'll indicate whether its healthy or not.
Yeah in the last 3 years it's only done a handful of miles so prob just needs messing with a bit.

Cheers for the help everyone
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