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Where is the fuel pump pressure sensor on a cadillac cts 3.6l

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Could be on the fuel rail near the return line , or if the pump and fuel filter are in the tank it could be in the filter housing, if it's not on the fuel rail it's in the tank.

Posted on May 03, 2017

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Posted on Jan 02, 2017

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1 Answer

How do i change a fuel tank pressure sensor on a cadillac cts 2006 3.6 L?


The pressure sensor is a part if the fuel pump assembley. If you drop the fuel tank you will see a small black box on the top of the fuel pump assy thats the pressure sensor. You should be able to just pop it out of the rubber gromet and install the new one. You may need the help of a flat blade screwdriver to pry it out.

May 02, 2017 | Cadillac Cars & Trucks

1 Answer

Where is the fuel tank pressure sensor located on a 2005 cts


On a Buick, it is located on top of the fuel tank. It is set into the module that contains the fuel pump assembly. If you have an access panel under the rear seat or inside the trunk area, whereby you can get to and change the fuel pump assembly, you should be able to remove the access panel and see the sensor where it sits in the fuel pump module or housing.

Dec 17, 2016 | Cadillac CTS Cars & Trucks

1 Answer

I have a cadillac cts 2008, when i fill the tank with gas and open the key the engine does not star, i have to do it one more time. what is causing this problem?


When you open the gas cap, you relieve the pressure in the fuel system. Once you replace the cap, this pressure must be reestablished. All vehicles have a fuel system "prime" function that causes the fuel pump to run for about 3-5 seconds after turning the key to bring fuel pressure to the fuel rail. It sounds as though your system isn't getting enough pressure on the first prime, so you must cycle the key twice to get full pressure. It could be a sign of the fuel pump starting to fail.

Aug 24, 2014 | 2008 Cadillac CTS 3.6L

1 Answer

2006 cadillac cts turns of after 5-10 seconds of running, engine stumbles usually when warmed up


Sounds like an O2 sensor problem, and I would start by replacing it. When the engine first starts and it is relatively cold, it goes into open loop mode and does not use O2 sensor readings to control fuel flow (uses various preset values for these and other sensors instead, and the engine should initially idle at 900-1000 rpm). When the engine warms up, the computer goes into closed loop mode and does use these readings. If if the O2 sensor is faulty, it can cause the problem you describe.

There are other causes for fuel delivery problems as well - bad gas or water in the tank, failing fuel pump, kinked fuel line or a plugging fuel filter, failing pressure regulator, a fouled or failing injector, problem in the EVAP system, etc.

Sep 19, 2017 | 2006 Cadillac CTS 3.6

1 Answer

Where is the fuel pressure sensor on a 2005 cadillac cts


Appears to be mounted on the fuel pump,
& takes at least 4 hours work, just to get
to it & then start the reinstall of fuel tank

Mar 10, 2013 | Cars & Trucks

1 Answer

Have a 2003 cadillac cts my car will crank but not turn on some times it will start but i will be driving and get to a red light and it will completly shut down on me it does not always do this at times it...


how many miles are on your car ? will it start up after it shuts down or do you have to wait 20 or 30 min. had a problem like this with my own car it had 1600,000 miles on it. do you have any warning light on dash when this happen, if not, it's most likley it is the crank position sensor. it's about $60.00 at the dealership, not fun to put in. also could be a fuel pump problem, have a pressure test done on pump first before you buy a pump it is about $400.00 + $600.00 to put in. I haven't seen to many pump problems without a lot of other issue while driving. If warning light are on, have the computer scanned first.

good luck bro,
i have done many CTS's like this and all turned out be the sensor.

Feb 11, 2011 | 2003 Cadillac CTS

1 Answer

CTS check engine light code P0451


Hi. the fuel pressure sensor is part of the fuel pump assembly. You will have to remove the fuel pump to replace this. I would go ahead and replace the fuel pump while you are there.You will have to Pull the strainer off the fuel pump and discard it. remove the retaining clip for the fuel pressure regulator so that you can remove the fuel pressure regulator. Disconnect the electrical connections for the fuel pumps and the fuel level sensor. Remove the retaining clip for the fuel level sensor and remove the fuel level sensor by squeezing the locking tangs. the sensor is incorporated in this area.

Please rate and god bless.

Mar 26, 2009 | 2005 Cadillac CTS

3 Answers

2003 cadillac cts


Hey Guys! Had the same annoying problem. Cadillac dealer could find nothing wrong with it. Gave me a new battery. Took it to PepBoys and it died for them and immediately they found that it was the Crank Positon Sensor!! Part was $70 + labor. GOOD as NEW!!!!

Jul 24, 2008 | 2005 Cadillac CTS

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