Jan 242017
 

Cadillac DevilleCould I swap out the 4.6 and put in a Chevy 5.0?


RESPONSE

I would not recommend this engine swap, though possible.

Cadillac LD8 4.6L Engine Swap

Anything is possible with the will and right set of tools. Therefore you’ll need to fabricate different mounts and adapters. Fabricate custom exhaust manifolds and pipes. Create all new wiring harness and change out engine computer. Not to mention the hood interference, etc.

The Cadillac 4.6L engine was designed for transverse applications where as the Chevy 5.0L engine was designed for rear wheel drive applications.

The LD8 (VIN “Y”) is a transverse V8 for front-wheel drive cars. Introduced in 1994, it is designed to provide more torque than the high-revving L37. The LD8 code had been used on all torque-tuned transverse Northstars, even as the exact engine specifications evolved. Compression ratio is 10.3:1 for engines built prior to model year 2000, and 10:1 for those built afterwards.

Oct 212016
 

1998 Cadillac SevilleMy vehicles engine overheats. It was losing water/coolant. Ive replaced water pump, thermostat, water reservoir, radiator hoses. Still the engine overheats. Vehicle runs fine until overheats. No smoke from tailpipe, no visible oil in the water or water in the oil. I did a pressure test. It loses pressure slowly but no viable fluid loss. I can hear air escaping somewhere but cannot determine where. Is this a head gasket problem or what test can I preform to determine problem. My vehicle has 118,000 miles has been sitting for 2 years before I purchased it.


RESPONSE

Engine Overheats

Sounds like the cooling system needs to be bled. You shouldn’t be hearing air leaking, you should be seeing coolant spewing out. The engine overheats if there is an air pocket in the cooling system. Maybe check and or replace the radiator cap.

Refilling Coolant

  • Close the radiator drain cock.
  • Refill the cooling system. In order to ensure sufficient engine cooling, freezing and corrosion protection, maintain the coolant protection level at -37°C (-34°F) or lower.
  • Add a 50/50 mixture of DEX-COOL® and clean drinkable water to the cooling system.
  • Set the heater and A/C control to the highest setting.
  • Allow the engine to continue idling until the lower radiator to water pump hose becomes hot.
  • Allow the engine to cool to the outside temperature. Check the coolant level.

coolant resivior 1998 Cadillac Seville

(1) 1. Low Coolant Level
  • The coolant level should be to the full mark (1).
Oct 122016
 

1992 Cadillac EldoradoI change my alternator and have a good battery but wen I try and crank it everything click but won’t crank at all


RESPONSE

one hard click is an indication of a failed starter. Several or repeating clicks is an indication of a weak battery or poor connections. Just because your lights come on or the radio works does not mean the battery is good. The starter requires about 250 amps to turn over. The radio requires less than 10 amps to function.

Aug 252016
 

2008 Cadillac-STSI just purchased this car, which has the Northstar V8. When I first start it up, smoke comes from tailpipes then immediately stops. Should I be concerned or is this normal?

Thank you.


RESPONSE

Would depend on the color, but for now I wouldn’t worry to much about it as it stops quickly. I would recommend checking the fluid levels and keeping an eye on them. If you notice one of the levels dropping take note.

Normally in cold weather and on first start up of the day you may notice some moisture come from the tailpipe. This is normal. The moisture may even be thick enough to drip water. This just means the catalytic converter is doing its job and doing it well.

Catalytic Converter

 The catalytic converter is an emission control device added to the engine exhaust system in order to reduce hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) pollutants from the exhaust gas.

The catalyst in the converter is not serviceable.

Aug 082016
 

2005 Cadillac STSMy power seats and steering wheel not working. I checked the fuse and there good. I ran a jumper wire to the seats and they work. Where should I check next.


RESPONSE

I would start with the fuse. If they are OK then trace the wiring harness. As for the steering wheel not working, I am going to assume you are talking about your Electronic Power Steering. Same thing there. Start with the fuses and go from there. I have provided the wiring diagrams for each circuit to help assist you.

Power Seats Wiring Diagram 2005 Cadillac STS

2005-cadillac-sts-seats-power-seats-circuit-1-of-1

Electronic Power Steering Wiring Diagram 2005 Cadillac STS

2005-cadillac-sts-electronic-power-steering-1-of-1

The power seat controls are located on the outboard sides of the front seat cushions.

  • Move the front of the horizontal control up or down to adjust the front portion of the cushion.
  • Move the rear of the horizontal control up or down to adjust the rear portion of the cushion.
  • Slide the horizontal control forward or rearward to move the entire seat forward or rearward.
  • Press the vertical control rearward to recline the seatback. Press the vertical control forward to raise the seatback. See Power Reclining Seatback .

If your vehicle has the memory feature, you can program and recall memory settings for seat positions. See Memory Seat, Mirrors and Steering Wheel .

 

Jun 272016
 

2004 Cadillac CTSI have oil where the spark plugs go what should I do?


RESPONSE

I am going to assume you have the 3.2L or 3.6L engine. Have the valve cover gaskets and o-rings replaced. Not a huge deal if you want to wait awhile before repairing it. Just make sure to keep the engine oil level topped off.

Valve CoverIf this is the 5.7L engine there are no o-rings to replace, just the valve cover gaskets.

 •  Do not remove the oil fill tube from the cover unless service is required.
   •  If the oil fill tube has been removed from the cover, install a NEW tube during assembly.
Jun 192016
 

2007 Cadillac EscaladeI am about to remove & reinstall the motor on this vehicle. According to a labor guide, how many hours does it pay?


RESPONSE

Labor Time:

2007-13 Cadillac Escalade ESV
w/Hybrid
13.6
w/o Hybrid
12.3
w/3 piece engine cover add
0.2
w/4WD add
0.9
w/AC add
0.4
w/engine oil cooler add
0.3
w/PS add
0.3
w/rear AC add
1.0
w/SAI add
1.8
w/strut rods add
0.2
May 242016
 

2001 Cadillac DevilleCar overheats not sure why interior floor carpets damp maybe heater core Cadillac. It is a 2001 Cadillac Deville I checked oil, no water. I was wondering if heater core leak could cause overheating? Need Help Please.


RESPONSE

Yes, a leak anywhere in the cooling system will cause an overheating issue. Most likely reason for a damp floor would be the heater core leaking. Check your coolant level and if it is low, top it off and perform a pressure test on the system.

I use a coolant system pressure tester kit. This will put an adequate amount of pressure on the cooling system and allow you to locate any leak in the system.

Follow the image for more Details…

Heater Core Cadillac Labor Time Estimate : 7.1 hours

Heater Core Replacement

Removal Procedure

  1. Disconnect the heater hoses from the heater core.
  2. Remove the instrument panel assembly.

2001 Cadillac Deville heater core diagram

  1. Remove the heater core cover fasteners (1).

heater core diagram 2

  1. Remove the heater core retaining fasteners (1).
  2. Remove the heater core retaining straps.
  3. Remove the heater core.
  4. Remove the heater core case seals.

Installation Procedure

Caution! Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

 

  • Install the heater core.
  • Install the heater core retaining straps.
  • Install the new heater core case seals.
  • Install the heater core retaining fasteners (1).
  • Tighten
    Torque the fasteners (1) to 1.4 N·m (13 lb in).
  • Install the heater core cover fasteners (1).
  • Tighten
    Torque the fasteners (1) to 1.4 N·m (13 lb in).
  • Install the instrument panel assembly.
  • Connect the heater hoses to the heater core.

 

 

May 102016
 

Cadillac Blower MotorNo a/c or heat – Cadillac Blower Motor


RESPONSE

The most common reason would be the Cadillac blower motor has failed or power is unable to reach the blower motor from a failed blower motor resistor. Check for battery positive and negative at the blower motor electrical plug(2).

Cadillac Blower Motor and Fan Replacement

Removal Procedure

  1. Remove the right side sound insulator.
  2. Pull back the carpet near the blower motor.

Remove the IP compartment.

  1. Remove the dash integration module from the bracket.
  2. Remove the two rear dash integration module bracket fasteners.
  3. Re-position the dash integration module bracket in order to remove the blower motor.

Disconnect the electrical connector (2) from the Cadillac blower motor.

  1. Remove the blower motor retaining fasteners (1).
  2. Rotate and remove the blower motor from the vehicle.

Installation Procedure

 Rotate the blower motor in order to install the blower motor into the housing.

Install the blower motor into the Cadillac blower motor housing.

  1. Ensure that the blower motor gasket is properly aligned.
  2. Install the blower motor retaining fasteners (1).

Caution! Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

 

Tighten
Tighten the blower motor fasteners to 1.4 N·m (12 lb in).

  1. Connect the electrical connector (2) to the blower motor.

Re-position the dash integration module bracket to its original position.

  1. Install the 2 rear dash integration module bracket fasteners.
  2. Install the dash integration module.
  3. Install the IP compartment.
  4. Re-position the carpet.
  5. Install the right side sound insulator.
Feb 262016
 

2003 Cadillac Escalade
When to get tune up on my 2003 Cadillac Escalade with a 5.3L engine. I have had this car for a while now. It seems to run OK but my mechanic seems to think I should get a tune up. It has 213,000 miles on it.
_______________________________________________
RESPONSE
According tot he manufacturers maintenance schedule the engine tune up(spark plugs) should be performed at 100,000 miles. Check any maintenance repair records you might have to see when the last time it was done. No reason to spend time and money if you don’t need to.

Maintenance Schedule Highlights:

  • The engines air and fuel filter should be replaced every 30,000 miles.
  • Transmission fluid replaced every 50,000 miles.
  • Transmission fluid and filter along with the engine spark plugs every 100,000 miles.

How often do I need an engine tune up?

Car and truck engines today are equipped from the factory with double platinum spark plugs. These specific double platinum spark plugs will last up to 100,000 miles or longer. Much different from years past when a set of spark plugs were needed almost yearly.

Engine Tune up

Engine tune up rule of thumb

  • Carburetor engine – tune up yearly
  • OBD I Throttle Body Fuel injection –  every two years
  • OBD II (1996 – 2004) Fuel Injection – every 80-100,000 miles
  • CAN 2005 – present Fuel Injection – every 100,000 miles

Transmission tune up rule of thumb

  • Pre-synthetic transmission fluid (Dextron/Mercon) – every 30,000 miles
  • Synthetic transmission fluid – every 80,000 miles
  • Hasn’t been changed and has over 120,000 miles – DO NOT CHANGE FLUID, it will slip with in the first 200 miles.

 

Transmission Overheating Chart