Cadillac engine repair questions and answers
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Wiley Simhiser - 2001 Cadillac DeVille - Engine - 8/19/2014Replaced Engine. Replaced water pump. Replaced thermostat. Over heats when driving. Pushes coolant out of reservoir.
8/19/2014 JimmThe most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.
Here is a short list of possible causes for overheating;
Low coolant level
Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
Clogged radiator hoses
Clogged heater hoses
Clogged radiator passages
Clogged heater core
Faulty water pump
Faulty radiator cooling fans
Faulty radiator cooling fan switch (coolant temperature sensor)
Faulty / worn serpentine drive belt
Faulty / worn drive belt tensioner
KARL H. PAGEL - 2001 Cadillac Eldorado - Engine - 8/12/2014no codes showing to get idea of problem
8/12/2014 AutoMD MemberIs there any light on on your dash??? If so check out this page.. this happened to me with my regal and after a lot of research I came across this module and it worked.. it has to do with the security in the car... this piece will help to bypass it and it will start every time
The security, antitheft or lock picture/icon is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well.
AutoMD Member - 1995 Cadillac Eldorado - Engine - 8/6/2014pulled coil wire from cylinders #3 and #5 got no fire, does this indicate a fouled plug or bad coil?
AutoMD Member - 2005 Cadillac SRX - Engine - 7/19/201455,777 miles. and had vehicle looked at by local mechanic which stated that I needed to replace three coils and possibly spark plugs. Can you help please.
7/19/2014 JimmFirst step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.
Possible Causes of Engine Hesitation or Stumble:
Dirty fuel injectors (cleaning the injectors often fixes this)
Dirty air filter (change filter)
Dirty / clogged fuel filter (change filter)
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)
Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:
Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
AutoMD Member - 1998 Cadillac Catera - Engine - 6/29/2014It only takes off slow after u reach speed limit its fine.
AutoMD Member - 1997 Cadillac DeVille - Engine - 6/24/2014Want to knw what's another option for a Lil more horse power how much bigger of a motor can I fit in a 97 Deville can i replace head gaskets while motor is installed
AutoMD Member - 2009 Cadillac CTS - Engine - 6/12/2014I put gages on and the Freon level is ok but the clutch will only stay engaged for a few seconds then kick off. When it is engaged it will blow cold air. Where do I start
AutoMD Member - 2003 Cadillac CTS - Engine - 6/9/2014can't set timing correct on the cts...valve keep interfering with the turning of motor...have timing tool just can't quite get it right
AutoMD Member - 1995 Cadillac DeVille - Engine - 6/8/2014I let out the free on but it is not saying low free on on the dash board
AutoMD Member - 2014 Cadillac SRX - Engine - 6/8/2014some thing the engine light comes on and stay on until I reset code mi is 140,000 warm stopped once in a while 3 months ago some times engine light no other light come on
AutoMD Member - 2008 Cadillac DTS - Engine - 6/8/2014Mileage on vehicle is 56000 miles. When I first apply the gas I feel an intense vibration in the accelerator. It only lasts until I get to a speed of approximately 35mph then subsides. The problem usually occurs when the engine is cold. There are no warning or ...
AutoMD Member - 1991 Cadillac Allante - Engine - 6/6/2014dash computer also states electrical problem
AutoMD Member - 1991 Cadillac Allante - Engine - 6/6/2014dashboard says electrical problem
AutoMD Member - 1996 Cadillac DeVille - Engine - 6/2/2014car overheated tried to start car I do believe the anti-theft came on an shut the car off how do I turn back on
AutoMD Member - 2004 Cadillac CTS - Engine - 5/28/2014Steeringwheel + brakes lock after car shuts off randomly during drive with no control steering.