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Vw 1.9 tdi engine noise at 800 rpm

My vw 1.9 tdi has a bad rattling sound at 800 rpm but if reved beyond that it disperses -is it injector or probs in the camshaft

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  • Volkswagen Master
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If it is a turbo diesel (TDI) I suspect that the injectors need attention
if they are squirting , dribbling or are not atomizing as required then the diesel may be igniting before ignition time causing piston slap (the rattle)
Take it to a diesel specialist shop for a diagnosis and quote

Posted on Dec 27, 2016

  • ken wright
    ken wright Dec 27, 2016

    thanks Bill I be leave you are spot on as I thought it was that but before I spend heaps of dough on it I wanted a verified answer thanks

  • ken wright
    ken wright Jan 04, 2017

    Bill I used nulon diesel injector cleaner put half the bottle directly in the filter housing and ran the motor till engine temp was up and blimey me it is now perfect no undue noise-

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Rattling noise sportage 2008


Sorry for the late reply but, no, it is not related to a loose heat shield. It is a louder rattling sound more like a loose bearing vibrating inside either the transmission or the clutch assembly. Only between 1600 and 1900 rpm. and it is not present under ou over these rpm. The rattle desappear when I lock the 4X4. Dealer is out of solution!!

Aug 06, 2012 | Kia Sportage Cars & Trucks

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On a dashbord flashing "oil


STOP the engine immediately !!! There is an oil pump failure of 2.0 TDI engines !
Remove the oil pan and the oil pump & balancer shafts assembly.

tdisline_456.jpg


Either the shaft driving the pump from the balance shaft rounds off or the balance shaft drive gears eat themselves.
The same issue ... low oil pressure warning light, noisy rattling engine, and the turbo has gone. Diagnosis: oil pump balancer shaft assembly ...


tdisline_457.jpg

tdisline_458.jpg
tdisline_459.jpg tdisline_460.jpg tdisline_462.jpg tdisline_463.jpg
Many 2.0 TDI engines show excess chain noise and wear anywhere from 50,000-100,000+ miles. Cars have broken the chains/tensioner as low as 65,000 miles. This is just a range of cars that have been reported, diagnosed, and repaired. The actual statistics on dealer repairs or failures is unknown and I've heard cars over 100,000 miles that, in my opinion as a non mechanic (most mechanics wouldn't recognize this sound and problem either), aren't noisy. From what has been reported, noticeable noise/chain-tensioner wear/greater risk of breaking is around 60,000-150,000 miles. Your case may vary. The most obvious symptom is a rattling loose noise from the oil pan. Unless you listen to a Passat TDI with a tight chain and one with a loose chain, it's hard to describe the difference other than rattling chain noise.
The reason the gear drive oil pump modification was started is because a few mechanics who specialize in TDI have seen many worn oil pump chains/sprockets/tensioners. There will always be a few defective parts that come off the assembly line and all mechanical components like chains wear out sooner or later, but in my opinion, the failure rate is abnormal considering the number of Passat TDI sold versus the number of reported oil pump failures. This does not necessarily mean that every or even most Passat TDI will have this problem, just that the reported failure rate is high enough to consider this part a design failure. Nobody, not even VW-Audi knows the average time between failure for these parts and the percentage of cars that will have this problem, but they changed this design and if you want to not have this specific failure, the only sure way is to swap to the geared module.


tdisline_464.jpg

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Do I need any special tools or wedge to change a timing belt for 2001 tdi jetta diesel.


Timing Belt Spanner Wrench
AST tool# H 2587-1

- Used for the Adjustment of the Timing Belt
- Applicable to 2004-2005 VW Golf, Jetta Pump Duse and 2002-2005 Audi 3.0 V6

Used for the adjustment of the timing belt.

2009 Suggested user price: $52.67

Assenmacher Specialty Tools
1 800 525 2943
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AST tool# H 2587-2

- Used for Adjusting the Timing Belt Tension
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2009 Suggested user price: $52.67

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1 Answer

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sounds like crank noise....very serious...

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if could also be the vanos, variable valve timing. but at 2500 i'd say crank, especially if it has that rattle tone. that sound is a wearing connecting rod bearing. when it goes, the engine basically blows up and the insides try to escape through the engine wall...that destroys the bottom end, when that happens, stuff sometimes also goes up into the head, that destroys the top end.

then you would need a long block.

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MY CAR REVES UP AND TAKES OFF ON ITS OWN


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