2002 chev 5.3 engine lockdown engine will turn backwards no problem try foward an locks down

This may sound stupid but it WILL work. Have someone locate the starter. Tap it with a hammer while someone cranks over the key. If it starts it is the solenoid. Most come with the new starters. To make sure the engine is not locked up, put a socket on the Generator pulley or whatever you can and try to turn it clockwise. If it turns the engine is OK.

You don't say what kind of vehicle we are talking about, but it is safe to assume your ignition switch needs to be replaced.

Try turning the steering wheel while turn the key. If that doesn't work have someone rock the truck foward and backward causing it to roll slightly while you turn the key. If it has tilt wheel try changing the tilt position. Hope this helps.

check huubs and cv joints

Possibly a bad / leaking brake booster basically creating a major vacuum leak when the brake pedal is depressed. Had one in the shop just last week doing exactly the same thing & that was the problem.

there is a recall on the moon roof guides, call the dealer for replacement, see Consumer Guide for recalls.

1. Close all doors
2. Insert key into ignition
3. Hold down the power UNLOCK button on the driver's door panel, continue to hold down
until instructed to release in step 9.
4. Perform steps 5 through 8 in a fairly rapid succession.
5. Turn the ignition to the ON position (as far as you can go without starting the engine.)
6. Turn the ignition to the OFF position.
7. Turn the ignition to the ON position (as far as you can go without starting the engine.)
8. Turn the ignition to the OFF position.
9. Release the power UNLOCK button on the door panel. The vehicle should respond by
door locks locking and unlocking automatically. (If locks do not cycle after you let go,
not before you let go of the unlock button, then the vehicle has not entered programming
mode and you must start procedure over. Remove key from ignition, open drivers door
and return to step 1 ). If the locks do cycle automatically then proceed to step 10.
10. Hold down the LOCK and UNLOCK buttons on the remote until the doors lock and
unlock. This may take up to 30 seconds.
11. Repeat step 10 NOW for each additional remote. (Including any existing remotes).
12. Turn the ignition to the ON position to exit the programming mode.
13. Test remote(s).

On the side of the transmission there is a nut and bolt together that is your baned ajustment if you tighten that bolt all the way down and back it off 2 7/8 turns backwards .If that not it there is one more inside the tranmission pan and do the samething.

Try a different key if possible, sometimes key wears down.

The i.d Code Should Be On The Front Of The Engine Behind The Fan On A Metal Plate.