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How to reprogram pcm on a 2001 cadillac dhs

How to reproram pcm on my 2001 cadillac dhs

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: replacing spark plugs

Changing spark plugs in your Cad is not an easy thing. I tried it using the chiltons manual and it took five hours. Just in case you want to try it yourself you will need to start by removing the engine cover (two screws easy to locate). Next step is the tricky and tedious part. A black cylider with small vacuum tubes located at the rear center next to firewall needs to be removed. It is attached to the engine by an somewhat difficult to reach bolt and a almost impossible lower bolt that can be acessed underneath if you can find it and have hand of a ten year old. I removed it from bottom of vehicle than tightened it after from the top this is by far the most difficult of the process watch your knuckles. This vacuum valve is connected to a silver hose which needs to be unscrewed to remove valve two screws attach it from the bottom. This is another difficult one. Make sure the your socket is firmly onto the wrench, one socket remains hidden after it fell off, making a extra trip to the store neccasary after losing it. Move valve out of the way as best you can and what remaing are 8 bolts holding on the "ignition coil assembly". These shoul be taken out in a "W" pattern: top bottom top bottom. Remove these and remove panel another very tight fit. Remove spark plug boots and take out spark plugs and keep in order so that spark plug damage can be assessed according to corrisponding cyclider. Repeat for front plugs and reverse steps to reassemble. Spark plugs come pregaped. Start with the rear plugs, they are the most difficult, and you have a better idea how much time it will take.

Posted on Sep 29, 2008

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SOURCE: I have a cadillac 2002 dhs. It has an idling problem!

You MUST determine ("Due to Check Eng. Light") What the Code / Codes are stored in Computer , as they May Lead us DIRECTLY to the Problem.
Having Said that and with & In my Experience, the Throttle Bodies, AND the EGR Valves Get "CARBONE FILTH " Badly and Block Passages that Are in the "IDLE" Circuit of Throttle Body
side, and In the EGR Valve side of things it causes VACUUM LEAKS @ EGR Valve, This Requires physically Removal of and the Cleaning of these parts by hand. Also the IAC> Idle Air Control Solinoid Can Cause this too Or a Mix of All 3, BUT >>>>>>>>>>>>>>
First thing is I need to know Why Check Engine Light is on that is Determine What Codes Exist On Compter P L E A S E RESPOND BACK TO ME WITH This Information and we can go on from here. I Truely Hope I Can Be of Good Help to you. Waiting for Your RESPONSE.

Posted on Jun 15, 2009

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SOURCE: how do i remove the left rear door panel On a

On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls

Posted on Sep 23, 2009

bschilz
  • 2049 Answers

SOURCE: code po741 on a cadillac deville dhs 2001

P0741 Torque Converter Clutch Circuit Performance or Stuck Off

Your car actually has a viscous converter clutch inside the torque converter instead of a (mechanical) torque converter clutch to lock up the torque converter for fuel economy improvement. You will see it referred to as the VCC and/or TCC.....

The TCC/VCC has a variety of components in the system including an electrical circuit supplying the transmission, the apply solenoid inside the trans, the torque converter itself, the PCM that controls the apply, etc. It is impossible to diagnose from afar. Unlikely that it is a "sensor" inside the trans as the PCM controls the VCC apply and uses engine and trans data that it receives from a variety of sources. If a "sensor" had failed the trouble code for that sensor would be setting......

Something as simple as the brake switch can cause the VCC to not apply correctly. There is a safety switch on the brake pedal that activates the brake lights and disconnects the VCC circuit. If it is misadjusted then the trans cannot apply the VCC. Lots of other trouble shooting items on the VCC system. If you don't have a service manual and cannot trouble shoot the system, I would recommend a Cadillac dealer as they have the trouble shooting information for the specific VCC that the Cadillac 4T80E trans has that a trans shop is simply not familiar with. No sense working on the trans until you actually know what is wrong.

Posted on Jan 13, 2010

  • 248 Answers

SOURCE: where are the camshaft and crankshaft position

crankshaft sensor is and the hormonic balance pulley and cam sesoor should b and the front of the motor toward the top. But to b sure u should get a book for u vehical

Posted on Mar 09, 2010

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PICTURE OF PURGE LINE DIAGRAM FORTHE COOLANT SYSTEM OF A 2001 CADILLAC DEVILLE DHS ENGINE


There are a lot of coolant lines around the Northstar engine, but not one called a "purge line" that I am aware of. The coolant system is designed to be a closed system, and is never purged.

However, there is a rubber drain line on the pressurized overflow tank that will release coolant on excessive pressure sensed by the rad cap on the tank, or if the rad cap is faulty. If the system has a leak anywhere, it will not hold required pressure and that will always cause overheating. If you are losing coolant, that is the first place to look (bad rad cap, or cracked tank or line from the tank to the rad).

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02caddy dev.dhs overheating unsure if thermo/water pump.. I was hearing a noise for a couple days before like running water . any ideas to narrow it down .


Cadillac Deville Overheating fix! - YouTube

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Nov 19, 2015 | Cars & Trucks

1 Answer

How to do an idle relearn for 2001 cadillac DHS


is simple. start the car and let idle for 2min. drive 1 mi.w/o el. load and 1mi. with el. load(a/c, light) idle 2min. and is ready.

Apr 11, 2014 | 2001 Cadillac DeVille

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Abs traction control


bad wheel speed sensor

Mar 03, 2014 | 2001 Cadillac DeVille

1 Answer

I own a 2001 Cadillac DHS. The "SERVICE ENGINE


p0071 is the ambient temp sensor which is located by the hood latch behind the grill. They have the yendency just to go bad and you can replace the part for about 30.00 dollars. The dealer is usually higher than a transmission shop. It requires removing the engine and transmission at the same time which means removing the complete frame. A smaller shop may be able to beat the price if you can find one that works on caddies. Some will and some won't. I would shop around.

Dec 09, 2010 | 2001 Cadillac DeVille

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Sepentine belt routing diagram for a 2001 cadillac dhs with north star engine


http://www.google.com/search?client=ubuntu&channel=fs&q=northstar+belt+diagram&ie=utf-8&oe=utf-8

Jul 25, 2010 | 2001 Cadillac DeVille

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Oil pan gasket fell out...


3500.00 cadillac dealer ...motor has to come out

Feb 13, 2010 | 2001 Cadillac DeVille

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Locate and replace a transmition shift selenoid in a 2001 Cadillac deville DHS


I t will be inside the transmission. Remove the trans pan and you will see them at the bottom

Jan 18, 2010 | 2001 Cadillac DeVille

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