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Seville

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Question
Codes po171, po174, po303, po741
First, I would like to thank you for your service. I am also a veteran. Lets look at each code and their meaning first. Code P0741 is for a problem in the torque converter clutch seal in the transmission and...
Question
i ran out of gas with my 2000 seville cadillac and refueled, it rolls over but won't start, why?
In all likelihood, the fuel pump has failed. Fuel pumps rely on gasoline for lubrication as well as cooling. Run it dry and it can overheat. When you turn the key to the ON position without trying to start it,...
Question
oil is leaking onto the MAP sensor...and is intermittently stalling
If you were told that the upper intake needs to be replaced then this may cause problems with the MAP sensor and the way the engine runs. A MAP sensor is very important to controlling the fuel strategy to the...
Question
My a/c blower don't blow.
The blower is under the black panel you smack every time to get it going. You may need to pull the cover off and pull the carpet back and remove a bracket and module to get access to motor. The...
Question
My 96 Cadillac Seville is running for about 30 mins and then my oil pressure lights comes on and says "stop engine". I've checked the oil and it's ok.
From what you've described, the problem sounds like you are loosing oil pressure to the engine and the light and noise are indicating that there is a problem. The fact that you are full of oil tells me that the...
Question
Where is the shifter interlock solinoid located on 95 cadillac sls and can new part be purchased?
Hi there, There is normally a small tab that can be pried out with a screwdriver that is used to cover up the shift lock solenoid. I would recommend looking all around your shifter assembly for a small plastic tab...
Question
It won't start.
The engine requires three things to run - Spark, fuel, and air. Unless there is a restriction in the air intake, air will almost always be present. fuel can be lacking for a number of reasons: 1. Bad fuel pump...
Question
Serpintine belt might be out? Car isn't starting.
Although the serpentine belt does power multiple components on your Cadillac Seville, the electrical gauges are not part on that list to my knowledge. The alternator, which is typically driven by the serpentine belt does power those parts however. My...
Question
Loss of power while driving the car after it gets moving. Steering also goes out. I shut car off and start it back up and it's fine.
Hi, thanks for writing in. There are a few components that can cause these issues. The easiest part to inspect for proper function is the drive belt(s). If these are slipping, stretching, or breaking they will slip and can cause...
Question
Engine wont start
It sounds like you may have experienced some internal transmission damage. This vehicle is a front wheel drive car so the transmission is in the front of the vehicle rather than under the front seat. Due to the placement of...
Question
Replaced wiper motor wipers still dont work. Checked fuse. Seems no electrial current
Hi there. Was supply voltage checked at the wiper motor, fuse, wiper switch? If there is no supply voltage at the fuse, then the problem could be in the fuse block or wiring harness. The fuse could have a crack...
Question
Overheating - 2001 Cadillac Seville
Hello. This is a problem within the engine. Most of the time the head gasket leaks internally or there is an issue with one of the cylinder heads. A block check would need to be done in order to be...
Question
Temperature reading hot cold air blowing out of vents both side set at 90 degrees. Northstar will I blow a head gasget??
Hello. It is likely if the vehicle is getting progressively hotter, that it is going to overheat sooner or later. The head gasket is one of the several components that can be a factor, but you will want to test...
Question
My Cadillac Seville does not stay on after I start it
This is likely related to a fuel supply issue due to the fact that it requires starter fluid to stay running. I would begin by checking the fuel pressure after replacing the fuel pump to be sure it is getting...
Question
Car won't crank - 2000 Cadillac Seville
Hi and thank you for contacting YourMechanic. If your accessories and instrument panel does not function when you turn the key to the on position, check the ignition relay and/or the ignition switch as they need to be replaced. If...
Question
Transmission actualization (updated)
Hello - If i understand you correctly, you are asking where the 5 solenoids (you refer to them as "actualizations") for this transmission (4T60E) are located. These solenoids are mounted to the transmissions valve body, which is located inside an...
Question
solenoids for cadillac
Hello - no, the solenoids do not require software updates themselves. Think of them as "On or Off" devices. They do receive commands from the transmission controller, which could have software updates, but the solenoids themselves are isolated components -...
Question
We are replacing rhe water pump and the special tool is not working it just keeps slipping the water pump is very rusty need help
The replacement of the water pump on your vehicle is more complex than the average vehicle and does require a special GM tool (J 38816-A Water Pump Remover & Installer), therefore if you desire you can request that a certified...
Question
I'm changing my a/c blower motor and I need help getting it out
Once you removed all the screws then rotate the blower motor clockwise to disconnect the blower motor from the housing. You can then remove the blower motor. When installing the new motor you have to insert and turn it counterclockwise...
Question
Power drain 1978 Cadillac Seville
Hello - you may have a charging system problem, although you have replaced virtually of those components, or there may be a parasitic drain on the system that runs your batter down overnight. This can be diagnosed by identifying which...

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