2000 audi a4 2.8 was hit in the front change the bumper ,radiator
Dont start,i change the starter,it cranks but dont start,I check the compression and one side of engine 1,2,3 pistons doesnt have no compression the other side 4,5,6 have copression ,what I did put the spark plugs back only on the 4,5,6 pistons ,right side,and left other side with no plugs the car turn on ,but when I put the spark plugs of 1,2,3 back it dont fire,I open the coverd off to see if the back chain was off it look good to me.I need some help please
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What had you been doing to the engine before all this happened? Did it involve removing or changing the distributor? When the #1 piston is at top dead center, it can be on its compression stroke or at the end of its exhaust stroke. Back the engine off from the #1 TDC position, remove the #1 plug, and rotate back toward TDC with your finger over the plug hole. If you feel compression, then the distributor should be coming towards #1. If you don't feel compression, rotate the crankshaft another 360 degrees, then set your distributor to #1.
Okay, you have to set the number 1 cylinder at TDC of its
compression stroke, and then drop in the distributor so the rotor is pointing to the #1 spark plug wire tower. This should start the car, then you could set the timing to spec with a timing light.
There are two TDC's of a cylinder- the compression stroke and the exhaust stroke. To find the compression stroke, take out the #1 cylinder spark plug. Put your finger over the hole. Now either turn the engine over by hand (with a socket on the crankshaft pulley-turn clockwise), OR have a helper bump the starter over in as short bursts as possible. As soon as you feel pressure on your finger- stop turning- the piston in #1 is rising on its compression stroke. Now check the timing pointer or scale by the crank pulley. Turn the engine slowly on over until the notch or mark on the crank pulley is right on the zero degrees mark on the scale. This is TDC of compression stroke-the piston is at top of travel in the cylinder. Put the distributor in so the rotor will be pointing to the #1 spark plug wire.
First off, ether is not the way to go at all! You'll end up messing up the piston rings with continuous use. Also with using ether engines tend to get "addicted" to it (its the only way they will start after some time as the rings get burnt and compression under normal cranking isnt enough)
The fact you can start the engine on ether means fuel prob isnt the problem. I would have said the problem was probably your pre-heating system and to check your plugs, wiring and fuses for the pre-heating system but the fact hot start doesnt work either doesnt make sense.
How long have you been using ether? If it has been for an extended period then I have a feeling the piston rings might be shot and full compression cant be reached during cranking and the ether just kickstarts your engine into starting. Any smoke out the tailpipe?
that trouble code indicates that crankshaft position sensor circuit has a fault. check that the 3 wires on the sensor are in tact and area around it is free of oil and deposits it that doesnt work then you will need a new sensor
There is not much that can be done with worn parts. Are you saying "There is a starting problem"? Poor compression can be checked to see if it is from the Rings by measuring the compression first, then squirting oil into each cylinder and retesting. If the compression climbs, then it is a ring problem. If the oil does not help, then it is a Valve problem or timing problem.
The top of the engine can be taken off and serviced to fix the Valves. You can check the timing by removing the #1 sparkplug and going to TOP-DEAD center on the #1 piston. Then see if the Timing mark agrees with the cylinder position. There should not be any significant slack in the timing chain.
As for the sparkplugs, they are one of the best indicators of what is going on inside the engine. Check if they are fouled. Sometimes an increase in the heat range of the plug will help to cope with oil fouling, but only temporarily. Also have your Starter checked for current draw while cranking. If the engine starts when pushed better than by using the starter, your cranking speed is too slow. Blame either the starter or the battery.
Hello, I have read about the Keyways in the crank and camshafts shearing off. If you disconnect the Battery and take out a sparkplug, you can turn the engine with a breaker bar. Then put a probe into the sparkplug hole and you should be able to feel the piston coming up in the cylinder. If the piston does not move you can start disassembling the front cover to check the Keyway on the crank.
If the pistons are moving. remove a Valve cover and turn the crank while watching the Valves or cam on the topside of the engine. This will give you an indication if the Cam is not turning. It is not impossible for a Cam to snap so watch to see if all parts the entire length of the cam are turning.
Another potential problem much easier to fix is the Starter bendix. If you only hear the Starter cranking without a load, was the engine turning? The Starter gear could fail and the starter will just spin while the engine does nothing.
Would be interested in the outcome of this problem.
Wait for the car to cool off.
Check for :
1. Fuel- does it have gas?
2. Spark- Is it getting good spark(electrical functioning-battery, starter, timing, etc.)
3. Compression- If the valves are toast the piston will not compress the air/fuel mixture for the spark to ignite it. No explosion, no start.
Try to start it. Is there power in the vehicle? Does the engine turn over? If the engine turns over, does it have fuel? If it doesnt crank and the battery is fully charged then try jumping the starter solenoid, if it doesnt turn the engine then you must check to see if the engine is turning freely or seized by turning the crank with a breaker bar and socket. Is the engine turns then you should be able to troubleshoot it, if it doesn't then something is not letting it turn either in the head(s) or in the crank and that equals to pretty expensive repair costs.
IF you get it to start, shut it off immediately and find the source of the overheating before going any further. Check coolant level(make sure the car has had enough time to cool down), check water hoses for leaks or cracks, check for a stuck thermostat or a clogged radiator.
with # 1 piston (front piston on drivers side) on tdc compression stroke place distributor in pointing at the front of the drivers front tire as it drops in it should point roughly at the # 1 piston as it rotates clockwise as it drops in , the cam gears have to mesh so dont force it . if it wont drop into place try a small bump of the starter while applying light pressure down on the dist.it should drop into place and then lock it down a bit . get #1 piston back on tdc compression stroke make sure the power wire is off the dist . the big red 1..you dont want it having spark yet. if it goes into place then set your cap and wires back in and time it with timing light .remove vacum hose from vacum can on side of dist and plug the hose off then use timing light and set to what factory says , usually between 4-8 degrees btdc. 1-3-5-7 piston numbers front to back drivers side ///// 2-4-6-8 front to back on pass side firing order is 1-8-4-3-6-5-7-2 and the dist should have #1 pointing at the drivers front corner of engine. start # 1 plug wire there and work clockwise next spot clockwise on dist is #8 plug wire and so on.. good luck
Locat #1 cykinder, remove the spark plug, Put a piece of cleanex in the plug hole and bump the starter. When you blow the tissue out, your piston is on the compression stroke. bump the starter, not crank. If you go to far then go aroun again When the piston is in up stroke compression, hand thurn the crankshaft until the piston tops out and starts going down. back it up so you are on the upstroke agai. then forward again until you crest again. Look on yhe front crank pully for timing marks line them up when you have #1 near its top.. The cylinders are numbered oon the manifold. Good luck