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2002 Chevy suburban wont crank, battery is good, alternator is good, starter is good. What could be the problem?

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Check fuse box left side of dash for ignition fuse. test fuse while cranking engine for power, if blown out, replace fuse.

Posted on May 17, 2014

Testimonial: "I've checked all the ignition fuse, all of them is still good, but the truck still won't crank. My 3 yr old was playing around in the truck n I think he lock the truck up. Please help."


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Posted on Jan 02, 2017

  • 9 Answers

SOURCE: 1988 chevy suburban charging system

First check alt At The Back of Alt Big Red Wire Were hooks to Post (stud) Do you have voltage ?? How Much??
What Voltage do you have at same Place with Engine Running ??
Now At wires Were they plug into Alt ,Top. Wires in White Plastic Clip, Do You Have Powe With Key On ?? How Much Voltage??
Jump across the 2 in the clip (with Engine Running)ONLY TEMPORARY!! Do You Have Voltage at Battery ?? How Much??
If Over 13volts With Clip On (Jumped) You Need A Internal Voltage Regulator ..
Is Batt Light On on Dash ??? Theres A Lot Of Testing You Can Do !!! And I will Need More Infomation to Keep Going ... These are just some Possible Problems No Way In Depth ...
Could Be a Number of things Or May be Just as Simple As a Blown Fuse, Dirty Batt Cables ETC etc etc I Hope It Puts You On The Right track !!!!!!!!!!

Posted on Jan 07, 2009

  • 202 Answers

SOURCE: 2002 pontiac aztek wont crank or start

did you try the starter relay.

Posted on Feb 12, 2009

  • 957 Answers

SOURCE: 1993 suburban won't crank when hot

There are quite a few things to check, start with checking fuel and spark. One or the other isn't working at the time of NO START. Things to check: ECT sensor(engine coolant temp.), TP sensor(throttle positioning), fuel pump and relay (), spark-plugs, wires, cap&rotor, air&fuel filter, PCV, ignition control module (can be tested for free at AUTO-ZONE or most other part stores), IAC (idle control valve), no crank signal (defective ignition switch), or PROM. I think that with all the extra cranking something else is bad now. Check the battery, should have 12.5 volts (cold), the fuse, connections, and bench test the new starter, it might be defective. Hope this helps you, if you have any other questions, please ask away.

Posted on Jun 11, 2009

  • 10 Answers

SOURCE: bmw wont start. I have replaced the starter,

It could be so many things wrong with this car has the electronics are very complicated something has silly has a fuse may have blown fuel pump may have packed up the list just goes on. So you would be best taking your car in to a garage and asking them to diagnose your problem this could save you a lot of money rather than just replacing parts that dont need replacing.

Posted on Jul 10, 2009

  • 5660 Answers

SOURCE: My 2002 chevy suburban will not start.

1.Are the battery terminal ends corroded?
This is a side post battery, and they are notorious for battery acid leaking, out of the battery terminal seal.

Solution: Remove both battery terminals, (Negative {Black} terminal FIRST!) Mix up a solution of two tablespoons of baking soda, to one tall glass of warm water. Wearing protective gloves, (Dish washing gloves?), hold the terminal AWAY from the battery, slowly pour the baking soda/water solution on the terminal.
Work the terminal bolt back, and forth in the terminal end, to ensure the solution gets to all surfaces. The terminal will turn a bright copper color.

When you are satisfied that the terminal is clean, pour water over it to rinse the solution off. Dry the terminal with a paper towel, or suitable throw away cloth.
Clean the terminals on the battery with a wire brush.
Reinstall the battery cables. (Positive terminal FIRST, Negative terminal LAST!)

Throw the gloves away in a sealed plastic sack, wash your hands, and arms thoroughly.

2.Do the headlights come on now?
No? Replace battery cable, or cables.

3.Headlights come on? Suspect the starter drive, starter, and ignition switch.

At this point, it's time to have a competent mechanic look at it.
The mechanic will do a cursory inspection of the starter, and see if removal is necessary, or may want to test the ignition switch with a multimeter.

Posted on Jul 26, 2009

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If your saying the starter motor won't crank? Make sure the battery has a full charge and battery connections are all good. Then check the wiring circuits at the starter for voltage and ground. When testing at the starter make sure tranny is in park or neutral and the parking brake is set.

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With the motor running, the meter should read between 14 and 15 volts, below that, the alternator isn't charging and needs replacing.
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