When I start my 2005 Chevy Tahoe LT there is a grinding sound and it won't start, so I turn the key back and stop, wait and then the next time I turn the key it starts just fine. It has done this 3 times in the last week. ??? I bought the car about 3 weeks ago, used, it has about 87,000 miles.

One of two things is possibly wrong, the starter solenoid is bad or the starter has failed. Sounds like you battery is fine.

What is 3.4.

Glad you solved it.

i would say when the person broke into your car they set off the security system which stops the car from starting, the way to reset the security is to put your key into the ignition turn the key until all the dash lights come on and let them stay on about 15 minutes after the 15 minutes have expired turn the key off and wait about 3 seconds and then your car should start. hope this helps.

chevy has had an issue with all makes and models with ignions they have had several recalls. one thing is if u have a bulky key chain all our shopping reward cards and so forth they r heavy and just dangle try using a seperate keychain for car keys and one for other stuff clip it to ur purse. if the problem persist take it back. I had an isssue w stereo had to take baCK 3 times b4 they got it right1 good luck women.

By grind you are saying it cranks for a long time before it starts. It sounds like one or more of your injectors are leaking and need to be replaced.

Your problem may be one of the following:
First check or just replace the fuel filter. Usually located under the car in front of the rear axle, drivers side.
Next, the fuel pump may be worn out. Usually they get loud or stop working (running).
Next, check the fuel pressure regulator. Usually located on the front fuel rail, drivers side.
Is the vacuum line attached? Not leaking or rotted?
Also, do you smell a strong fuel odor when it won't start? May be one or more stuck-open injectors, or the coil pack is bad.
Checking these in the order listed will more than likely fix your problem.
The clicking noise indicates the battery can no longer run the starter, which also means the fuel pump won't run either.
It could be a fuel issue. How old is the fuel filter? Can you hear the pump run for a few seconds when you turn the key on? Try turning the key to ON without trying to start engine three times waiting for the pump to stop running each time. Then try to start the engine. If it starts, Its a form of Vapor lock caused by the extreme heat we have had lately, and a weak fuel pump.

If none of this works, try a new fuel filter first. From there have someone check the fuel pressure regulator and then the pump. If you are in need of a new pump, take my word for it and spend the money to get one from a Dealer, and not from your favorite parts store. Most parts store parts are made in China and they are JUNK.

put the fuse back in and try this,, when the alarm goes off, try holding down the Lock and unlock buttons at the same time, that should reset your alarm

I have fixed many of these with this problem.. I have found the wires from the unit to the screen that pass thru where it folds break. to fix it you have to remove and completely dis-assemble it, which is kind of a pain.... not guaranteed your problem, but the only problem I personally have had from that unit..

Turn your key to the on position(do not start), then push the throttle pedal to the floor three times, turn of the ignition, wait a second or twothen start the engine, this should reset it. Works on the 2000 Tahoe LT 4WD