1.9 TDI Golf 4 poor performance and slow revving

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kobus1340
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1.9 TDI Golf 4 poor performance and slow revving

Post by kobus1340 »

The car start and idle perfect. When pushing on the accelerator the revs increase slowly. There is no power.
The turbo was replaced and the cat removed. The timing belt was replaced. I checked the timing with proper tools and found to be correct. I check the system and had to replace the MAF sensor. All the vacuum hoses was checked and found to be in order. The vacuum solenoids was checked and found to be in order. The fuel filter was replaced.
I removed the fuel hose on the filter and found that it is difficult to suck the fuel from the tank and if i keep my tongue on the end of the pipe i can feel the suction. if i pull my tongue of the fuel goes back to the tank.
Please note this car is not fitted with electrical pump in tank.
Any advice will be appreciated
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Tdi jetta 4 ever
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Car Make: VW
Car Model: Jetta 4 1.9 Tdi, Isuzu2.5DKBLe
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Location: Fochville

Re: 1.9 TDI Golf 4 poor performance and slow revving

Post by Tdi jetta 4 ever »

Please explain how you checked the timing ? Did you lock the injector pump and cam in place when you replaced the belt ?
You can disconnect that same fuel hose and blow the diesel back with air while your filler cap is unscrewed then suck and see if its better.
Keep us up to date. :hi:
Robin
Current rides: 02' Jetta 4 1.9 Tdi, 99' Isuzu KB 250 Dle(Faithfull aka slowmo) Mercedes Benz ML 270Cdi
Ex rides: 82' jetta 1.5 Gls(sold), 88' jetta Clx(sold with tears in my eyes)

Rather buy a good quality part that will last then buying a cheap part that won't last.


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panic-mechanic
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Location: Benoni, putfontein.

Re: 1.9 TDI Golf 4 poor performance and slow revving

Post by panic-mechanic »

Did You do a injection timing check with vcds. Does it boost when you drive it.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

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