Question about 1999 Chevrolet Silverado 1500

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Relays heating up under dash and ignition shorting out between key cylinder and starter

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  • sylvesterwil Dec 03, 2008

    I am not getting any heat, cold air is all I am getting, what could be the problem

  • sylvesterwil Dec 03, 2008

    Free means free to me, why are you asking me for payments, no thanks, I will ask else where.

  • python3568 Dec 03, 2008

    could have plugged up heater core or possibly the internal door for heater exchanche could be inopperative



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My heat is blowing out cold air

Posted on Dec 03, 2008

  • sylvesterwil Dec 03, 2008

    what could be the problem I have change the theromostat, but still get cold air when I turn to heating



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2004 Pacifica will not crank. Turn ignition and dash lights work but turning to start no starter engage. Hear relay click but no starter click. Could this be the key ignition tail piece broken?

Hi. If the click you hear when turning key to crank is from a relay start there. The fact you can hear the click means the ignition barrel is doing something and probably OK.

Oct 05, 2017 | Cars & Trucks


My car starter motor does not turn over.


If you do not have any power at all, and the dash is not turning on, then check the battery connections, and the connection from battery ground to the engine body.
Also ensure you have tested the battery. Read the voltage across the positive battery terminal and a ground connection on the engine body. It must be around 12.5V
If there is no problem in there , then the problem is the ignition cylinder. The ignition cylinder can be tested reading voltages at its contacts. This in case there is no power at all.

If instead the dash is turning on, but the starter motor does not turn over, then there may be more reasons for the fault.

To start, look for the starter fuse. This is a large fuse, probably a 30 Amps. Look also for a5 or 10 Amp fuse to the ECU/PCM (main car computer module. If any of this fuses has blown, it can cut power to the starter motor.

After testing the fuses, check the starter relay. This is usually located in the fusepanel under the hood, or under the dash. The relay must click when the key is turned. The relay can be tested in fullusing a Volt meter or an Ohm meter.
The starter relay can also be tested swapping it with a relay of the same kind.

Fuses and starter relay are the most common failure when the car dash comes on, but the car does not start.
If this test good, ensure that the anti theft system is not armed (starter should still turn over by the way).

If fuses and relay are good, read volts at starter motor, while machineis cranking. You will need to use Voltmeter on the contacts at theback of the starter motor solenoid. If there are 12 Volts at startermotor, but motor does not turn over, then starter motor or startersolenoid is faulty.

The starter solenoid can be tested using an Ohmmeter at its contact. Ifthe solenoid is bad, reading with multimeter set on impedance, it willhave no continuity (it will read infinite Ohms).

If there is no volt, or volt is much below 12 Volts, then the problemis either the ignition switch located in the steering column, or aproblem concerning wiring from ignition.

The ignition switch can be tested jumping its contact, reading Volts orOhms on its terminals. To access the switch it is necessary to takeapart the steering column.


on Mar 25, 2010 | Ford Focus Cars & Trucks

1 Answer

Rover45 ignition lights up,soon as try to start it blows a 10amp fuseunder dash,have changed starter motor an checked all wires and still does same

think the wire to the starter motor is damaged ?? try turning ignition on and running a wire from + on the battery to the small wire on the starter motor ?? and remember do not leave the key in with the door open as this will activate the immobilisor ,open the window ?,Seem to remember their is a relay for the starter motor in the power distribution box under the bonnet maybe the low side of the circuit in this relay has burnt out causing the short who knows ,with my head under the bonnet i would sort this in minutes as these cars are quite simple but the better ones had honda engines

Jul 13, 2015 | Rover 45 Cars & Trucks

1 Answer

96 grand cherokee starter stays engaged

bad starter relay in the PDC fuse box.
or bad ignition switch control output (crank key signal) to relay bad.
then engine may destroy the starter drive, if this keeps happening.
see page 8w-21 (wiring) for exact circuits.

old post, but feel your pain.

Mar 09, 2014 | Jeep Grand Cherokee Cars & Trucks

2 Answers

I have a 1992 honda accord that will not turn over. I have taken the stater off and had it tested, and have tried to jump the battery. The starter tested good and jumping did not start the car. I put a...

Have you tested the ignition switch at the back of the key cylinder under the steering column covers to see if the starter solenoid power is coming out of the switch< the ignition starter switches are prone to failure on this and other Japanese cars.

Aug 14, 2013 | Cars & Trucks

1 Answer

Maxima won't start, wiring, key lock cylinder

It sounds like your starter relay could be bad.

Jul 14, 2012 | 1989 Nissan Maxima

3 Answers

Turn key to start truck everything seems normal but motor does not turn over however i can go undernieth to starter with scrwewdriver on solinoid with key in run position and it will start up and run fine...

Hi, the problem is either with the crank fuse, ignition switch, safety interlock or the starter relay. First check the fuse (in the instrument panel fuse box). Can you hear the starter relay click when you turn the key to start? You may want to probe the relay socket with a 12 volt test light to see if the ignition switch is working. If it is, there will be 2 hot terminals in the socket when the key is turned. The relay is in the relay box under the hood. Connect your test light clip to chassis or engine ground, pull out the starter relay, and have someone hold the key in the start position while you probe the relay socket terminals. If there are 2 hot terminals, replace the relay. If there is only one hot terminal, try bypassing the interlock switch. On a manual transmission, the interlock is above the clutch pedal. Pull the connector off it and connect the terminals in the connector using a large paper clip.
If you have an automatic, pull the connector off the range sensor and connect the green and purple wires using a large paper clip. I think it's on the tranny. See picture of it below. Please let me know if you have questins, and thanks for using FixYa.



Mar 04, 2011 | 1999 GMC Sierra

2 Answers

The starter is gud and strong but it keeps turning the engine over and the key is in my hand out of the ignition

You've got a short or the ignition switch is faulty. Run your hand over any power wire to see if you have any hot spots. This is where the short is. Also the starter may be good but the starter solinoid may be shorting in which case change the solinoid. Good luck!

Sep 30, 2010 | Chevrolet C2500 Cars & Trucks

2 Answers

My car clicks when the key turns but wont turn over unless i do it really fast

HI, this is a faulty ignition switch mechanism. replacing this ignition switch will fix this issue you are experiencing.

Jul 08, 2009 | 1997 Geo Prizm

2 Answers

04 chevy 2500HD start relay /Circuit braker turns off @ key crank

Make sure battery has a full charge and battery connections all good. Any fuses in the diagram, test for voltage, some are hot all the time, some go hot with the key on.
Use a digital multimeter across battery posts, everything off, the generic spec for a full charge is around 12.6 volts. Leave the leads hooked up to battery, have a helper turn key to crank, how far does it drop? In my opinion it shouldn't drop much under 10 volts, I wouldn't argue with 9.6 volts.
2500 starter 1-h5vtzulw5yduyapxqxcg0ngy-5-0.jpg

impala starter 2-h5vtzulw5yduyapxqxcg0ngy-5-2.jpg

Mar 28, 2017 | Chevrolet 2500 Cars & Trucks

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