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2003 Cadillac cts car wont start put in a new relay for the starter car started right up and the yellow engine light went off a week later car wouldn't start switched relays around still wouldn't start put relays back like the were and car started but the yellow engine light is still on?

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Posted on Jan 02, 2017

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SOURCE: 1997 Chevrolet Z71 Pickup (intermittent start)

saved me the job of answering ,which would have been the same

Posted on Nov 22, 2008

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SOURCE: 2003 cadillac cts

That's what was finally found by our Cadillac dealer as well. They charged us too much, though.

Posted on Feb 09, 2009

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SOURCE: 2001 Ford Explorer Sport wont start

Even though I bought the vehicle new, there was an aftermarket security system installed. The system had a bad diode, so i removed the system and reconnected the factory wires.

Posted on Mar 30, 2009

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SOURCE: wont start, new battery, relay good, starter good.

Check the Starter Solenoid mounted near the battery.Check it out in the dark...have someone try to start it and see if it sparks at the solenoid.connections may be loose.Also check/wiggle wiring harness to starter.

Posted on Apr 19, 2009

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SOURCE: 2003 cadillac cts

cam shaft sensor is bad. Cost me about $300 to fix.

Posted on Sep 30, 2009

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1 Answer

Where to spray starter fluid in a 2003 cts Cadillac

Won't start an run , not won't turn over . Not turn over would be when you turn the key to the start position an nothing happens . An if you don't know where to spray starter fluid you really should take it to a qualified repair shop . In the end your going too anyway .

Feb 19, 2018 | Cadillac Cars & Trucks

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2004 cadillac cts wont start only with relay jump start

What relay ? Starter relay ? Check engine light on ? Do you know how to test power and control circuit at the relay base ? where the relay plugs into ? The PCM - engine computer is suppose to energize that relay , IF it see's a input from the transmission range sensor switch (park or neutral ) or if there are no anti-theft system problems . Pull the relay and look at the bottom (where pins are ) you will see four sets of numbers . 30 & 87 and 85 & 86 .30 should have B+ voltage 87 goes down to the starter solenoid . If you used a piece of wire an jumped those two the starter should crank .(if it's good ) Pin's 86 & 85 - one should have B+ voltage and the other the ECM supply's a ground . free wiring diagrams . Enter vehicle info. year , make , model and engine size . Under system click on engine then under subsystem click starting . View the starter electrical system diagram .
VEHICLE RELAYS Testing from the relay base
Starter relay works the same

Aug 25, 2017 | Cadillac Cars & Trucks

1 Answer

I have a 2004 cadillac cts and bought a new battery and will not start . I tried to jump start it from the relay switch and it wont start. Is it the starter?

Do you own a voltmeter ? Do you know how to use one ?
Starter Voltage Drop Could be the battery cable's Do you know what voltage drop is ? Which pin's did you try to do your jump start from ? 30 & 87 ? Where the relay plugs into right ? Is there B+ voltage at the starter fuse 30 amp .

May 06, 2017 | Cadillac Cars & Trucks

1 Answer

2005 cadillac cts wont start wont say anything.

Won't start how ? When you turn the key to the start position does the starter spin the engine ? Or not ? This would be a no crank - no start condition ! Or when you turn the key to start the starter spins over the engine but it doesn't start an run ? This is a crank - no start condition . Both have very different diagnostic testing procedures ! An what won't say anything ? Is there a car an padlock symbol lit on the instrument cluster ?

Nov 06, 2016 | 2005 Cadillac CTS

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CTS 2009 Reset, recurring of fuel gauge and engine light issue ?

I would first try to do a hard reset which means disconnecting your battery for 24 hours, that solves more problems than you would imagine.
Good luck.

Feb 19, 2014 | Cadillac CTS Cars & Trucks

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Wont start engine light flashing

Have you tried to jump the battery and crank it ?
Its possible the alternator failed or something happened to drain the battery.
Is the security warning light on ?

Sep 07, 2012 | 2006 Cadillac CTS

1 Answer

Went to start my 05 cad. cts. and all I got was a cicking sound. After several tries it finally started when a/c was on off position. Installed a new battery, it started right away but went back to...

Hi, your solenoid is having trouble engaging the starter gear to the flexplate. This could be due to a bad cable/connection or the solenoid coil or bendix linkage. What I recommend is to check the cable from the battery to the starter solenoid--especially where it connects to the solenoid. If there are any questions about the cable, replace it. If the cable looks good, then try swapping out the starter relay. You can just trade it for the blower relay as shown below. The relays are in the box under the hood and they pull straight up.
If neither of these ideas work out, I would remove the starter/solenoid and have it tested at your local parts chain. Please let me know if you have any questions, and thanks for using FixYa.


Sep 11, 2011 | 2005 Cadillac CTS

3 Answers

Cadillac 2004 cts, wont start

i had a 2003 ctc that did the same thing, it wouldn't start or would make a clicking sound and about 1 mth after the problem started aND mechanics could not find a problem my car caught on fire and burned completely from something under the right side of the hood. i had just parked the car and got out, it happened really fast. the fire chief said the cause was unknown????

now i have a 2004 cts and i'm having the same problem!!!!!!!!!!!!!!! has anyone else had this happen???? please be cautious if your cts is doing this, during the fire my doors locked and had to be pried into by fire chief.

Nov 24, 2008 | 2004 Cadillac CTS

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2003 cadillac cts

You may have a bad throttle body.

Oct 27, 2008 | 2003 Cadillac CTS

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