Question about Cadillac DeVille

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1998 Cadillac Deville. Fully charged battery but car is dead. I tried to start the car and it just clicked but it had some, but very little power. I placed the battery charger on the car and in 3 hours the battery showed it was fully charged, but the car now was absolutely dead, no power at all.

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I am thinking a couple of things here:
1. Throttle Position Sensor (TPS)
Solution: hold the gas pedal to the floor and try to start the vehicle (if a clutch make sure the clutch is in). If the vehicle starts the TPS is bad or needs to be cleaned.
2. Try to Jump the battery
3. Very little power can be an intake manifold leak, water port area or reservoir cap. Compression.

Usually a TPS problem will not throw a code like other start up sensors.

I hope this helps.

Posted on Oct 21, 2013


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Posted on Jan 02, 2017

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SOURCE: Troubleshooting car starting problems for a 93 Cadillac Deville

this happen with my 93 ,if the car cranks,it's your gas presser regulator. it's on the top of the engine ,right side of carb.

Posted on Jan 26, 2009

  • 7 Answers

SOURCE: I have a 98 cadillac

The clicking noise is usually the starter solenoid failing to engage. In your case it sounds like it is just barely starting to fail and the new battery simply gave it enough juice to overcome and start. I would expect the problem to return soon. When it does, locate the starter and give it a few light taps with a hammer or other weighted object while turning the key. this should enable it to start. In that case you will need to replace the starter.

Posted on Jul 31, 2010

  • 32281 Answers

SOURCE: recharge battery Cadillac Deville 2005

You do not need to remove the battery to charge the battery. When you connect the charger you MUST be careful to connect the charger's positive lead to the positive terminal to the battery and the negative lead to the negative lead to the battery before you turn on the battery charger. Connecting the charger leads the wrong way around most likely damage the vehicle's electronics.
When you finish charging the battery turn off the charger before you disconnect the charger leads. This will prevent arcing between the leads and the battery.

Posted on Jan 14, 2012

Testimonial: "Thanks for your advice, Chris! In the past, I used to remove the car cables (leads) from the battery before charging it. I have read and been told that it is best to keep the charging current away from the car's electrical system. I think that I will do this as well. Do you know of anything that I should look out for or be careful about (apart from connecting the cables (leads) to the correct terminals ("+ to +" and "- to -")? Thanks very much for your help!"

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