Question about 2007 Volkswagen Jetta 2.5 Sedan

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To replace an air filter on 1.8 turbo engine

Where do I start? How do I get to it?

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Check out my other posting, but in my non turbo charged vw you have to take off the plastic cover under the hood. From the floor looking up, with the same shape as the hood... Hope it helps

Posted on Dec 13, 2008

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Posted on Jan 02, 2017

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Oil in the Engine Respirator and in the Turbo


oil in the turbo to manifold section is indication of a failing turbo
To understand turbo operation , they do not have bushes or bearings that are a close fit on the shaft but have a floating bush that is dragged around by the friction of the oil ( turbos spin at up to 150.000 rpms under full power ) so the effect is that the differential speed of shaft to housing is halved by the bush rotating
unfortunately , what destroys turbos is , when the engine stops with the turbo shaft still spinning and very hot , the shaft touches the bush and the oil seal fails allowing oil into the inlet side of the system and out the exhaust side as well
If the mechanic has recommended that the turbo be replaced , I would say from what you write that it is a fair assessment of the problem
as to the rest , you can get that information from a service center that has experience on the make
It has to be a diesel oil 20w 40 grade depending on work conditions and atmospheric temperature
oil filter should have a nonreturn valve in the filter,- air filter should be replaced --not washed
there are many good brands on the market so it amounts to personal preference
One thing I always recommend to customers is to spend a bit of cash and install an oil accumulator for the turbo and a delay switch to switch off
the accumulator becomes pressurized with oil when the engine is running and if the engine stalls or is shut down quickly, that stored oil pressure still feeds oil to the spinning turbo for up to 3 minutes , which is enough time for the shaft to slow down

Mar 02, 2017 | Isuzu Cars & Trucks

1 Answer

Whistling when accelerating outlander turbo diesel


turbo whistle is common as it comes from the tips of the compressor wheel passing through the sound barrier and the turbulence occurs. IN the older trucks you would the turbo whistle as the engine reached full RPM just before a gear change. In smaller engine it is not do noticeable as there is an excess of air pressure that keeps the compressor wheel at a lower rpm and the pressure is dumped out. Turbo compressors reach revolutions in excess of 120.000 rpm under full load If it has just started to make the noise then check the intercooler system for leaks--loose clamps--- splits - Have the turbo compressor checked for damaged fins from the ingress of fine dirt from a bad air filter---check the air filter is not blocked as the turbo speed may result from running in a partial vacuum ( no load on the compressor wheel)

Jan 07, 2014 | Mitsubishi Cars & Trucks

1 Answer

I need step by step instructions on replacing a fuel filter in a 1998 gmc 6.5 turbo diesel please


I got this from Haynes Diesel Engine Repair Manual. I bought it for my 6.2.
1. Remove the fuel filler cap and air cleaner assembly.
2. On filters without an air bleed screw, place a rag under the filter to soak up fuel and detach the lower clip FIRST to release pressure and then the top clip. They pop off with a screwdriver.
3. On filters with an air bleed screw (top passenger side) drain fuel from the filter by opening the screw first and the engine water drain valve (engine front near thermostat) if it has one. Detach the clips and remove filter.
4.Make sure the seating surface is clean and place new filter in position. On non-air bleed filters put the upper clip on FIRST. On air bleed filters secure both clips, then close the valve and attach a piece of hose to the bleed port into a pail.
5. Air must be purged BEFORE start up, so disconnect the pink wire from the top of the injector pump and crank the engine in 10 second cycles with a 30 second wait time until clear bubble-free fuel comes out the lower fitting or air bleed. Connect the lower clip on the non-air bleed , close the bleed hose and reconnect the pink wire.
6. Start the engine and let it idle for several minutes to purge any remaining air and check for leaks.
Hope this helps.

Jan 31, 2011 | 1993 GMC Sierra C3500

1 Answer

My 2006 VW TURBO TDI is sick- Help me


Changed the timing belt and knocked loose the wires or connections to the sensors on the mass airflow device.

Mar 03, 2017 | 2006 Volkswagen Jetta

1 Answer

How many quarts of oil does the engine hold


I believe that in 1990 the 2.0L was replaced by the 2.3L. The 2.3L was offered in two versions. Standard and turbo. However since there may well have been 2.0L available in 1990 I included both capacities.

  • 2.0L: 4.0 litres.
  • 2.3L: 4.7 litres
  • Grades:Grade: Saab Turbo Engine Oil or an oil which meets the requirements of API SG and CCMC G4 or G5.
  • Viscosity: 10W/30, 10W/40, 5W/30 or 5W/40
If your Saab is the Turbo model please remember to take the extra steps necessary to protect the turbo unit.

#1
Before you add any new oil, fill the new filter up first.
#2
After you have secured the oil filter and refilled the rest of the oil remove the coil wire to prevent the engine from starting.

After that turn the engine over for a count of 10 to 15 seconds. Now reconnect the coil wire and start the car.

This extra step is Critical and Necessary to prime the oil system. If the engine is started with an unprimed oil system and an empty oil filter the turbo will not receive oil for 10 to 15 seconds after start up. Some scientist have speculated that this was in fact an unlikely cause of the last great extinction event that occurred somewhere else. ":->

Hope this helps and good luck.

Oct 22, 2009 | 1990 Saab 900 Hatchback

1 Answer

No power noisy engine smokey exhaust


Clean air filter, fuel filter and turbo filter. Check the inlet and outlet manifolds incl. EGR valve and Turbo gate. If there is particle filter then may be it is clogged. If its a diesel then open the injectors and clean it.

Oct 11, 2009 | 2005 Peugeot 405

2 Answers

My 2001 jetta tdi starts and idles fine, but has no power in acceleration. I replaced the air filter and the mass air flow meter. Problem is not better. What could this be


There is a ****** fuel restriction on the TDI, but I think your vehicle is being starved of fuel. You didn't say if you had replaced he inline filters, if not I can guarentee thats your fault with you vehicle. Our vehicle, that's deisil, never goes below 1/4 of a tank, because it starts to pull the **** out ofe the tank, and that blocks the filters quickly, check them first! Let me know if it

Jul 15, 2009 | 2001 Volkswagen Jetta TDI

1 Answer

I need instructions for replacing the turbo on a Saab 1999 9-5 4 cyl turbo


Hi, I have done this and it is not too bad, but will take you about 4 hours if you are good, and longer if you have not done much mechanics.

The trick is to find a reasonably priced turbo, check ebay. There is a dude on there that just does rebuilt turbos. Very good, got mine for $

I have been reading up on turbo replacement procedure and I have found this list: First, there are a couple of questions that I have about the list:

2 air openings, pretty easy to figure out
2 exhaust openings, pretty easy to figure out
3 round openings in the center, all banjo bolts?
1 round / two bolt opening in the center.
1 Hose fitting off of the waste-gate
1 Hose fitting off of the air side of the turbo.

STEP 1 Open the expansion tank cap to release the system pressure.
STEP 2 Raise the car & Remove the lower front cover under the car
STEP 3 Drain off the coolant & Remove the turbo brackets
STEP 4 Loosen the return fitting and the pipe from the turbo to the block
STEP 5 Loosen the oil pipe between the filter adapter and the turbo
STEP 6 Lower the car to the floor & Remove the bypass valve & Unplug the connector from the control valve
STEP 7 Disconnect the mass air flow sensor connector & Loosen the hoses to the turbo
STEP 8 Remove the crankcase banjo bolt from the intake manifold and unscrew the bolt from the cam cover
STEP 9 Move the pipe and wiring aside & Remove the engine lifting eye
STEP 10 Remove the mass air flow sensor and air hose
STEP 11 Remove the exhaust manifold heat shield by removing the nut and two clips from underneath
STEP 12 Undo the intake manifold clamp at the turbo & remove the intake
STEP 13 Disconnect the hose clip on the hose between the intercooler & turbo & plug it to keep something from falling in it
STEP 14 Loosen the front exhaust system from the turbo & lower the front exhaust system away from the turbo (DO NOT BEND -THE FLEX HOSE)
STEP 15 Remove the oil pipe from the oil filtermag-glass_10x10.gif adapter & grab the copper washers
STEP 16 Loosen the coolant pipe by the turbo & grab the copper washers & loosen the coolant pipe bolt
STEP 17 Remove the coolant return pipe from the cylinder head & pressure sensor bracket. Once again, Grab the copper washers
STEP 18 Undo the coolant return pipe bolt by the turbo
STEP 19 Undo the nuts securing the turbo to the exhaust manifoldmag-glass_10x10.gif. (spray the nuts with WD40)
STEP 20 Install in Reverse


Just did this for the first time. Here are a few hints that may help others.

1) PB BLASTER is your friend. Remove the exhaust top front heat shield and hit exhaust nuts with PB Blaster as soon as you start the job, or night before.

2) Make sure that you have 12mm closed end wrench with AND without ratchet. Also a 1/2 size 12mm socket if you can find / make. These will help.

3) You don't have to remove the oil filtermag-glass_10x10.gif, but there one bolt that it would be nice for. I did not and did manage to get the job done.

4) Take you time. More of finding the right tool combination for each bolt.

5) Two banjo bolts on the turbo were really on there. Needed to use a mini-acetylene torch to eat up.

6) Have extracting sockets and bits ready just in case there are issues getting bolts / nuts off.

Turbo had quite a bit of end-play, but spun fine. Classic symptoms, blue smoke at start up and from time to time when driving. It was also making a bit of noise at idle.

jeffo2 ort11


Also, should get new copper washers. I did not have I have some micro leaks from time to time but nothing bad.

Dec 15, 2008 | 1999 Saab 9-5

2 Answers

Engine oil volume


Exactly 11 quarts of oil. That is a lot ; make sure you replace the oil filter , too, clean the air filter and replace the dieselfilter every 10 K km.

Rgds

Egon from Suriname and owner of the best Toyota 1HDFTE engine

Aug 06, 2008 | 1998 Toyota Land Cruiser

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