Question about 2004 Cadillac Escalade

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Will not start its clicking but cant tell if its from starter or starter relay

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  • May 11, 2010

    How do your connections look on your battery?

  • Benny Freeman
    Benny Freeman May 11, 2010

    clicking noise is usually for the solenoid. 
    also can be called starter relay ( although there is often another relay on larger diesels )
    when you hold the key in the on psition and tap the solenoid ( on the starter motor side) with a metal rod tyre lever or simiar does it start?
    can you put power to the terminal on the starter motor?
    does it spin ?

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  • 232 Answers

You are hearing the starter solenoid,even a high current relay makes little to no noise when it switches,this is probably being bad connections on a battery cable,or battery cable that has gone bad.

Posted on May 09, 2009

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Aurora 4.0 im stumped checked starer relay and car still wont start clicking ssound comin from backseat jumped it whats wrong


What year vehicle ? The clicking sound you hear from bake seat is probably a relay ! There is a fuse / relay box under the back seat ! How did you check the starter relay ? Just pull it out an look at it ? Was it #36 START 1 Relay
-- Starter Solenoid and PCM in the under hood fuse / relay Box ?
This relay is computer energized - PCM supply's a ground to circuit 447 which energizes the relay sending voltage to the starter S terminal engaging the starter . Do you have a test light or a volt ohm meter ? If you pull out the starter relay an look on the bottom you will see some numbers , 85,86 an 30,87 . match them up to the holes they came out of . Check out this video on YouTube ,you can check for voltage an computer control . Is the SECRUITY light lit on the dash ?
This VEHICLE RELAYS Operation Diagnosis VEHICLE RELAYS Testing from the relay base

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READ THIS ALL BEFORE YOU DO ANYTHING
NOTE: some vehicles have the starter relay and starter mounted together as 1 unit. Sometimes the starter relay and starter are seperate. When I refer to "relay" it could also mean the starter and relay as 1 unit.
Note: "starter switch" is not to be confused with "key switch", although sometimes they are all one unit. The starter switch is usually mounted on the steering column and actuated by a metal rod. On units that are all one unit, the keyswitch/starter switch (both one unit) will have to be replaced. (this is a rare problem, so don't get worried just yet)
1. Check battery voltage, should be between 12.5-14.5 volts. if low voltage replace or charge battery, and try to start car, if it don't crank with new or charged battery, move on.
2. Check connections on the starter relay, even the small one coming from your starter switch. if loose or corroded, clean with a brush and reconnect them. Try to start your car. Did it start? if not, Move on
3. Well now we know the connections aren't the problem. How about a click? did you hear one? If a click is heard, go to #4, if nothing is heard, go to #5
4. Well at least the relay is clicking, but nothing else is going on. The relay is working, so the starter must be bad. Replace the starter and start your car!
5. Humm, connections aren't the problem, maybe the relay is bad, replace your relay with a new one. Move on
6. Now we have a new relay, with clean and tight connections. Start your car. Does it start? If yes, then HORRAY! we fixed it. Does it click? If so then goto #7, If it don't click, then goto #8
7. So here we have a new relay, with good connections that will click when trying to start the car, but nothing else happens. Starter is faulty, replace the starter, and off you go, see ya!
8. So here we have a new relay, with good connections, but it still won't click when we try to start our car. This means that your starter switch is faulty. Replace starter switch and try to start your car. Vroom! finally done with this car problem!
List of shortcuts: if you remove the starter switch lead (small wire) from the relay and apply +12v to its respective prong or lead on the relay, and your starter cranks, your starter switch is faulty. You can actually hook up a starter button this way. If you jump the two large wires together on the relay and it cranks, then the relay is faulty. If you jump the two large wires together and nothing happens, then starter is faulty, or wires to starter are loose or broken.

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Go under the car and have a helper hold the key in the start position while you probe the wire to the solenoid for 12 volts, also do a voltage test on the positive battery cable and inspect it at the battery for acid intrusion near the positive battery post clamp, if acid has gotten into the cable the outer insulation will appear swollen and the cable must be replaced, this is a common cause of no starts on Explorers.

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1 Answer

My darango won't start, replaced that alternator and relays. starter is still good. but it won't even click over.


this could be as simple as a bad battery have you tryed to jump start it? if you try and that dosent work make sure you have power going to the starter with jumper cables on the battery. it should at the very least make a clicking sound while trying to start it check the battery posts also make sure they are clean and if it does click give it a minute and try starting it again.[ dont take the cables off the battery while waiting] the fact the starter doesent even click when you try to start it tells me no power to it or bad starter remember just because its new dosent mean it works i cant tell you how many times i have put somethig on a car and had to take it back off because it didnt work from the boxx new. and make sure the starter wires are tight and clean. if no clicking and you have power to starter then starter is bad.. i hope this helps..

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I have a 2000 VW Golf and am having problems starting it. I had the starter checked it was fine I was told that the ignition was bad so I replaced it, the car still will not start. Now they are telling me...


will not blame anyone 1st have you checked the black fuse box under the hood?if not,then look for main relay box(black) remove the cover,then look under the cover lid for relay locations. find starter relay.have some one Put their finger on top of the black square starter relay,then you turn your key switch to "on" does the relay that the fingers on click? if so,its'good. you also have what garages call a fuseable link.it's a hard black peice of rubber thats located in between the starter and the battery. but 1ST LETS COVER THE MAIN ISSUES WITH NO START! IS BATTERY FULLY CHARGED?A MUST! WHEN YOUR CAR IS ALL THE WAY IN PARK AND YOU TURN THE KEY TO START,NOTHING AS MUCH AS A CLICK? DID YOU HEAR A CLICK? GO TOWARDS A BAD STARTER CONNECTION,OR BAD STARTER.ARE STARTER BOLTS TIGHT? IS BATTERY TERMINALS TIGHT,THINK I ASKED THIS EARLIER BUT JUST 2 B SURE.

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Check for a good ground at engine end of negative cable. check starter end of positive as well. Click tells you that either the starter relay is getting signal from key switch and is not responding or that starter solenoid (on starter) is doing the same. If there id 12v at the starter main lead and 12v at the smaller starter terminal with key in start position, change the starter.(providing good ground and connections have been verified) If there is no power at small lead, suspect the relay has failed.(in power distribution box near battery)

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It could be starter or starter relay. But before replacing check the wiring coming to starter, starter solenoid and starter relay, they might be loose or deposited. Follow this link
It describes how and what needs to be checked for starting system.
Please kindly let me know if this information worked out for you
or if you need more info
Good Luck
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800a98bf

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