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2003 Cadillac CTS How to fix reduced engine power

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Read the fault codes and fix the problem sensors

Posted on May 07, 2017

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I have a 2003 Cadillac cts getting codes p1795 p1780 p1779 p2176 what can be possible problems to fix them?


code p 2176 refers to throttle actuator control(TAC) system--idle position not learned ===causes basic setting not carried out
code p 1795 is CAN bus--throttle body position
code p 1780 is park/neutral position (PNP) switch circuit engine torque signal circuit
code p 1779 is engine torque delivered to TCM signal
go google and type in cadillac fault codes and find a site that has all the codes listed

Oct 03, 2016 | 2003 Cadillac CTS

1 Answer

Reduced engine power on cadillac cts


A lot of possible causes.

Spark plugs, loss of compression,... Provide more details...

Oct 12, 2015 | 2005 Cadillac CTS

1 Answer

I have a 2003 Cadillac CTS. It continues to go into reduced power mode. How do I correct that.


Are you getting a ENGINE POWER REDUCED message ? Is the check engine light on ?
Reduced Engine Power Mode
Throttle Actuator Control (TAC) System
electronic throttle control .
When the ECM detects a condition with the TAC system the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
?€¢
Limited torque


?€¢
Limited range of throttle movement


?€¢
Engine OFF


Your going to need to take this to a ASE certified repair shop or the dealer , you probably don't have the diagnostic tools to trouble shoot this problem.
https://youtu.be/oPPLAHSSluw

Aug 16, 2015 | Cadillac Cars & Trucks

1 Answer

2003 Cadillac CTS wiring harness has burn damage. How to fix this? How could this happen? Is this expensive to fix?


Probably laying on some hot component.
You could call a salvage yard for replacement wiring harness or fix individual wires one at a time ...

Feb 06, 2015 | 2003 Cadillac CTS

1 Answer

How do you install camshaft and lifters in 2003 Cadillac CTS 3.2 Liter V6 Engine?


Too big a job for an answer here. Best to buy a service manual if you want to try to do the job yourself

Oct 15, 2014 | 2003 Cadillac CTS

1 Answer

Loss of engine power and T/C light comes on CTS 2003


My 2003 cts runs but has no power at gas peddle

Apr 22, 2013 | 2003 Cadillac CTS

1 Answer

2003 Cadillac cts service idle control reduce engine power


I have 03 cts and service idol control shows when I start the car sometimes and sometimes comes on while driving. I had everything cleaned and everything was good for a week then the engine light would go on and off, I think I may need a new sensor for the idol control or replace it. My question is if I keep driving it will it effect anything else ?

Sep 18, 2012 | Cadillac Cars & Trucks

1 Answer

Vapor canister 2003 cadillac cts


it will look something like this:
1_10_2012_5_20_27_pm.jpgand is usually located on the fender well on the engine side toward the front corner of the car (it may be inside the fender itself)
there would be 2-3 large vacuum hoses going to it which will help in finding it.

Dec 26, 2011 | 2003 Cadillac CTS

1 Answer

2003 Cadillac CTS won't start after disconnecting battery


Don't do that again! You will need to re-boot the on board computer system by entering a code. Call your nearest Cadillac dealer.

Nov 28, 2011 | 2003 Cadillac CTS

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