Question about 2003 Audi A4 Cabriolet

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Audi a4 2.4 engine 2003yr need to replace 8 valves and do tune the car while the engine is stripped changed the cam belt really need a maual for the tensions and a diagramme of the valves would be fantastic tried to buy a repair maual for a4 2.4 sport model can't find one any where please help. sam

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Did you try www.autozone.com? Might help

Posted on Jun 21, 2009

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3 Answers

I replace the timing belt on a 96 Toyota Camry 2.2 engine why has it jump time I check the belt it was tight will a bad camshaft be the cause


If you find a belt with stripped cogs, it indicates that something in the cam drive system has jammed or stuck, overloading the belt and causing it to shear teeth or jump time. The most likely culprit is the camshaft, which may have seized due to engine overheating or lack of lubrication (low oil level or loss of oil pressure). Check the coolant level, oil level and maintenance records of the vehicle. Toyota has been recommending 7,500-mile oil change intervals for some of its vehicles - which has lead to oil sludging and other engine problems. Changing the oil and filter every 3,000 miles or every three to six months is still the safest recommendation.

Apr 12, 2016 | Toyota Cars & Trucks

1 Answer

Hesitation ONLY OVER DRIVING AT 3000 rpm LACK OF POWER


Sounds like the distributor is causing problems. The distributors are known to have bearing wear problems, so even if the cap is recently changed, you might need a whole new distributor. At the very least, it sounds like a tune-up may be needed: new spark plugs, wires, and distributor cap.
Also, if you have the V-6, the timing belt needs to be changed every 105,000 miles. a timing belt with stripped teeth could be causing your issues, and if the teeth are stripped it probably won't be long before the belt lets go and you completely ruin the engine. It's an interference engine, so without proper timing, the pistons can make physical contact with open valves, causing bent valves or connecting rods. At that point it is cheaper to replace the whole engine rather than tear it apart and rebuild it.

Aug 24, 2014 | 2000 Nissan Frontier

1 Answer

This is a 4cyl diesel Beetle. The timing belt broke while driving. Dealer claims no damage done, replaced belt and car was driven for a few weeks. Began to start a bit sluggish, dealer said glowplugs...


my books show it as a interference engine in which case valve damage is most likely to occur
however if that was the case , it would be having a miss from the start and would not run 2 weeks before something happened
if a valve spring breaks there could be valve piston contact but it is doubtful if that would destroy the engine but again breaking valve springs is rather rare on diesel engines
the engine would not just quit but would rattle and bang it's head off then develope a big noisy miss from a hole in the piston
so I suspect a timing belt problem from when they removed/replaced the head after the glo-plug fix or a crank/cam shaft position sensor or wires ( possible faulty connections for the cam shaft)
I would suggest finding an accredited service center for a proper diagnosis and quote for engine repairs

Apr 12, 2017 | 2003 Volkswagen Beetle TDI

1 Answer

I have a 93 audi 90 series V6 2.8L 5 speed. It needs a timing belt and will not start. What is the easiest way to change the timing belt, and what other components should be changed in order for the...


the only special tools you need are a harmonic balancer puller, and a gear puller (for the cam sprocket), you are probally going to have to remove, the altanator, your belts, a motor mount, timing convers, water pump, and maybe a couple other accessries im missing, as far as what else to change, the water pump, and serpentine belt should always be done with the timing, its not a really hard job, its just tedious, a lot of nuts and bolts, you should not have to readjust anything in the system, unless you motor is what is called an inteference motor, in which case, when the timing belt broke, the piston came up and hit the valves bending them so they dont close properly, which will cause you to have little or no compression on one or some of the cylinder, the best was to check it is while you have the motor stripped down and the belt ready to put back in, it to turn the cam to isolate 1 cylinder at a time close the valves on the cylinder, then put a compression tool on it and turn the crank, if your valves are working properly, you will get some compression from the test, zero compression means bad valves or rings.

Mar 21, 2010 | Audi 90 Cars & Trucks

1 Answer

HI MY CAM BELT STRIPPED AND JUST WANTED TO CHECK OUT THE CORRECT TIMMING MARK ON THE CAM SHAFTS PLEASE


If the timing belt stripped out chances are a valve in the interference engine was bent. These engine are called interference engines because they are designed in such a way that if the belt breaks or strips out the valve gets in the way of the piston and get hit by the piston, the timing marks can be found in a haynes repair manual found at Auto Zone or Advanced Auto Zone.

Dec 07, 2009 | 2000 Daewoo Nubira

1 Answer

Working on a 2000 Audi A8. Need info on changing


If it's anything like the six cylinder engines from Audi, which I'm very familiar with, and from what I remember of the V8, you have a timing belt that drives the water pump, crank, and exhaust cams, and also includes a tensioner and an idler roller. The timing chains come into play in the cylinder heads. What Audi did was to only drive the exhaust cams off of the crank, using the timing belt, and inside each cylinder head there is a timing chain assembly that is used to drive the intake cams off the exhaust cams. On a periodic service (like the timing service) you only need to do the timing belt. The timing chains are only replaced if the tensioners fail - you'll know this by a diesel-like clatter from the cylinder heads. Failure of the chain drive assemblies is very rare, which is good because they're incredibly expensive (on the V6 engines they're upwards of $700 each). If you're doing this job because it's due based on mileage, don't touch the timing chains in the cylinder heads - only change the timing belt, tensioner roller, relay arm, hydraulic tensioner, idler pulley, water pump, and serpentine belt. You can leave the chains alone.

Dec 01, 2009 | 2000 Audi A8

2 Answers

My Audi 80 can't start after changing the timing belt, water pump and the cam belt, wht is the problem?


The valve timing must be out. You will need to verify that the timing marks on your camshaft sprocket(s) are set at the correct position when you rotate the engine to the compression stroke on TDC.

Sep 30, 2009 | 1992 Audi 80

1 Answer

How to change a timing belt on an audi a4 1996 is it easy


It is fairly easy, you do need a special cam alignment too, it can be purchased online for $99. You also need a 2 jaw puller to remove the cam gears.

Care must be taken when servicing this engine as it is an interference engine and if the belt is installed wrong the valves will be bent.

Sep 16, 2009 | 1996 Audi A4

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