Question about 2004 Cadillac Deville

2 Answers

2004 cadillac deville engine idle races and stalls

My 2004 Caddy Deville engine started racing as high as 2000 RPM at a stop light last week and yesterday the engine stalled out while I was driving slowly into a parking spot. The problem has gotten worse over the past week. Any ideas out there on what's causing this problem and how to fix it? Thanks.....

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 444 Answers

Is your check engine light on while your driving? If it is get a hold of a scran tool to find out what codes are showing.Or most auto parts supply stores have one end will check it for codes, Most of them don,t charge to check it out for you.

Posted on Oct 26, 2012

  • 1 more comment 
  • Ken demers Oct 27, 2012

    I have no check engine light on. I'll see if my autoparts store has a scan tool and see what that tells me.

  • Ken demers Oct 27, 2012

    Thanks for the advice.

  • Kimbal McCoy Dec 14, 2012

    My car (2004 Cadillac 74,000 miles just started the same symptoms)

×

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I am no mechanic, let me make that clear, but I have rebuilt and fixed more vehicles over 30 years , so I have a little input. You should try looking at your EGR valve(exhaust gas Recirculating valve) this silly 200$ piece controls idle, rpm and it does what it says, it puts back lean exhaust gases into system so they reburn for cleaner emissions. Problem is when it starts crapping out unless you keep foot on accelerator it either wont start or RPM drop to zero. Hope this is helpful.

Posted on Dec 07, 2012

  • sergiomesa3
    sergiomesa3 Dec 07, 2012

    I am no mechanic, let me make that clear, but I have rebuilt and fixed more vehicles over 30 years , so I have a little input. You should try looking at your EGR valve(exhaust gas Recirculating valve) this silly 200$ piece controls idle, rpm and it does what it says, it puts back lean exhaust gases into system so they reburn for cleaner emissions. Problem is when it starts crapping out unless you keep foot on accelerator it either wont start or RPM drop to zero. Hope this is helpful.

×

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

SOURCE: My 1993 cadillac deville feels

The error is indicating that the Throttle Position Sensor (TPS) is out of the normal range with respect to the Idle Speed Control (ISC). Try something really simple and inexpensive first by removing the air ducting between the air filter box and the throttle body. Clean the throttle body interior and throttle plate with a cloth sprayed with WD40. Turn the throttle plate by pushing it at the top with your fingers and clean the throttle throat behind the plate as best you can. Reassemble the ducting and ensure that there are no air leaks at the junctions and no splits. Turn the key to position 2 (engine not running) and depress the accelerator pedal to the floor and then back up again. Start the car and nine times out of ten that should fix it. The TPS measures the opening angle of the throttle plate. The TPS is device consisting of a circular carbon track with a slider, corresponding to the throttle plate, sweeping along it. It as three wires to it, two to provide the 0 to 5 volt range along the length of the carbon track and the third to measure the voltage at the contact point of the slider. To check the TPS measure the voltage of the middle pin of the connector when the ignition is at position 2 (engine off) as you push the throttle plate open and closed by pressing on the accelerator pedal. The voltage should alter in a smooth continuous way. Any drop outs of signal indicate a worn carbon track and the TPS should be replaced.

Posted on May 09, 2011

  • 1 Answer

SOURCE: 95 cadillac eldorado engine stalls rough idle check engine light is on

I have a 95 eldorado that is starting hard and idling rough. Also noticed gas pedal fluctuating. I have been told it is the Fuel Pressure Regulator. Does that sound reasonable?

Posted on Jul 09, 2010

  • 1509 Answers

SOURCE: 1994 Cadillac DeVille that is intermittently

The idel motor has gears in it that wear out. Just like the other answer, the failure will turn on the check engine light and with a check engine problem the cruise will not engage. no matter what the check engine light is on for. If your handy with tools the idel motor can be taken apart and a new gear kit can be installed and put it back in. You can also but the complete unit but their not cheep.19160423 Manufacturer: ACDELCO PROFESSIONAL Grand Blanc, MI 800-223-35261058422942.jpgThis part cost $78 at my local auto parts store and they have it in stock.

Posted on Aug 11, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Truck idles very high when starting


how cold is cold???? In Alaska or Key west?
tell location and bingo, i know. but didnt
all engines race cold for sure EPA regulated ones.
and race faster the colder it is

what is RPM see dash, see dash rpm gauge called the
tachometer, use that to answer
or if no tacho there, ill never know here in the cloud.

no engines size stated


its 85f here.
2000 RPM is easy cold.
here about 1500 cold (85f) but drops fast say 5min.

Dec 25, 2015 | 2002 Suzuki XL-7

1 Answer

1989 will not idle, have to keep foot on the gas pedal


It,s either not getting enough gas or not enough air. Check has and air filters.

Dec 09, 2014 | 1989 Cadillac Sedan DeVille

1 Answer

My 1995 caddy 4.9 surges when you race the motor at a high idle speed you let off the gas some and it stops until you try to race the motor again


Some of these models have a rev limit.This is to save the motor.Keeps it from blowing up.Usually around 3 gran.Not just caddy`s but most G.M. models.Hope this helps.Good luck.

Dec 09, 2011 | 1995 Cadillac DeVille

1 Answer

What does the coe p0507 mean caddy deville 2001


Idle Air Control System RPM Higher than expected. The computer is detecting an idle speed higher than what it should be. A vacuum leak perhaps...EGR valve, faulty PCV valve, throttle body, EVAP system, idle air controller or circuit. Check for vacuum leaks.

Apr 10, 2010 | 2001 Cadillac DeVille

1 Answer

My car dies when I drive for a short time.


Check O2/mapp sensor. Also if you can elaborate on the behavior of the engine as it stalls, is there smoke, does it race then suddenly die out or does it barely run at a very slow unsteady idol until it floods out?
Check O2/mapp sensor. Also if you can elaborate on the behavior of the engine as it stalls, is there smoke, does it race then suddenly die out or does it barely run at a very slow unsteady idol until it floods out?
Answering with as much detail as possible will help get a more definite answer.
Good luck.

Apr 04, 2010 | 1985 Cadillac DeVille

2 Answers

INCREASED ENGINE RPM'S ON MY 99 CADILLAC DEVILLE


throttle position sensor. or idle control sensor

Feb 12, 2009 | 1997 Cadillac DeVille

1 Answer

Car wont idle well


have throttle position switch checked and idle control valve checked.

Feb 04, 2009 | 1999 Cadillac DeVille

1 Answer

Engine races, misfires and stalls sometimes


oxygen sensor has this effect when it is busted.

Jun 10, 2008 | 1989 Cadillac Sedan DeVille

Not finding what you are looking for?
2004 Cadillac Deville Logo

797 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...