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Gravy
06-16-2009, 03:11 PM
I think the best question is.... is the starter ACTUALLY contacting the flywheel? If it is, than you have to start looking at fuel/ignition. If it's not and just spinning i bet it's a weak line between the starter and battery. However i'd have to see/hear the problem to start giving any ideas. Try pulling the fuel line on the filter, and either before, or well after test to make sure you've got spark. Just make sure the gas is gone, had someone want to try that yesterday with gas fumes everywhere in the engine bay.

NTobler
06-16-2009, 03:36 PM
Tested the positive wire, it's good that isn't the problem. What the best way on going about testing for fuel/spark. I brand new to the game man, please keep bashing down if this is a stupid question lol. Thanks for the help guys

Nick Larson

asshanson
06-16-2009, 04:09 PM
Check to see if your cam gears are moving, should be easy to see if it's actually cranking the engine or not.
If so, take spark plugs/wires out and crank the motor and see if they are sparking.

Gravy
06-16-2009, 04:29 PM
HOWEVER!!! Do not let the spark get you. Put a screwdriver into the wire and ground it to something and have someone crank it over while you watch. Do NOT touch any of the grounds or the wire. I don't believe our cars have enough umph to kill you, but it will hurt like hell.

For fuel by cracking the banjo bolt on the fuel filter you can test presure there. Can try cranking the car but you'll make a horrible mess when you do if it's working. But there can still be residual fuel in the line and it's not he best way to test the system. But one of the easier, can rule out clogged fuel filter or pump at once. If you get no fuel, you can test back by the pump by removing the line coming from the pump and if you still get no fuel... you know it's pump related. Fuse, relay, ecu, pump it's self. Makes the search shorter, but not always easier.

Compresion test will also let you know if you've got a broken timing belt as well, but taking the top cam gear cover off will show you if it's the culprate or not. Should be half a dozen bolts to remove and easy to get on/off. Shouldn't have to replace anything by doing that either. If you crank it, and the cam gears don't spin, you could have a broken timing belt, but that should be easy to see right away, should be bound up or no belt visual on the cam gears right away.

Lots of little tests to preform, but the general rule of thumb, you need one of three things to start a car. Fuel, Spark and Compresion. Figure out which you don't have, and fix it, and the car runs.

asshanson
06-16-2009, 04:33 PM
Meh, I've just held the boot part carefully and rest the spark plug on the VC. Seems to do the trick as long as you have a second person cranking.

Gravy
06-16-2009, 04:49 PM
I would be careful, guy that stopped by work had a buddies of his heart stop beating from getting a shock from an 02 Silverado when the spark jumped and hit him in the hand. Ambulance was able to get it started again, but i don't feel like having to hear about anyone getting hurt.

asshanson
06-16-2009, 05:11 PM
^ Wow, guess I'll be more careful from now on.

NTobler
06-16-2009, 05:12 PM
checked fuel and spark....both are good...

Gravy
06-16-2009, 05:54 PM
Time for compression, did you remove the timing belt cover to see if the cams are spinning? If they are than i would do a compression test, someone on here should have one you can borrow, i have one but i can never find the damn thing. From me leaving it at either the garage or pole barn in between lending it to Febo, i almost never know where it is till i randomly run into it.

Did you check the pressure when turning the car over? You should get TONS of fuel coming out when you crank it over. There will almost always be some residual fuel in the line. I've had trouble explaining that to TONS of people in the past, just cause gas is there doesn't mean the fuel pump is ok. It should spray all over the place just like a kid does when you go to change them. Should get gas on the fire wall, all the hoses, and even for a quick crank should get a damn nice puddle on the ground.

Beyond that... I wouldn't know exactly where to go till those questions are answered.

So to re-cap:
1.) Tons of fuel coming out?
2.) Spark on all 4 plug wires?
3.) Timing gear spinning when you crank it over?
4.) If you have a plug out, and crank it over, does it push air out of the spark plug hole? Good thing to test while checking spark as well. Lets you know the piston is at least moving up and down.

Another thing i thought of, how far can the timing jump on these cars before contacting the pistons? I think if it goes far enough to prevent the car from starting the damage to the valve train is already done.

mukapahnpy
06-22-2009, 02:33 PM
I'd recommend following Gravy's Compression check if you've checked and rechecked all connections, spark, and fuel troobleshooting tips. How was the car/engine before you changed the flywheel?