20 Most Recent 1999 Cadillac Eldorado Questions & Answers

More then likely the horn relay is stuck closed ,sounding the horns all the time . The horn gets power from the power seats circuit breaker ,no fuse . Relay located in under hood relay center .

Lock and unlock the car with your key from the drivers door lock.

Does it do this with both keys?

Replace radiator water by adding coolant

If this sound is there only when the car is moving, probably an air leak or loose/plugged cabin exhaust vent. Could be cabin air leakage past the rubber seals around the door - check for gaps. While you are at it, there should be a vent on the door post that is meant to relieve excessive air pressure in the cabin (your HVAC system fan is always running when the car is running). If the vent is not allowing air to pass through freely from the passenger compartment, or there is something loose behind the vent, that could also make a noise.

It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, Try a spare key that is newer or used less. The pins wear down and so do the keys causing security fail. 2nd trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shutting down while running, im sorry i have no quick fix... If anything on this page helps you, please remember to comment or give me a thumbs up on the myfixya sight so i can have a better rating to help more people on this. Thanks

Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
----- http://vats.likeabigdog.com/


Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks. If you do buy this, please purchase it thru this link. The cost is the same, but i get credit for the sale and im trying to earn my money back, as you will be able to do if you buy fron NewRockies and join the free affiliate program. Thanks
----- http://newrockies.ca?ap_id=judd0081 ----- With this fix, you can take that whole Vats, passlock, passkey system out of your car all together. Good info on both sites.

It works for:
Any GM or Isuzu Vehicle with VATS or PASSKey or PASSLock security systems.
If your car has the chip in the key or in the lock cylinder, then you can save it with this Full Bypass.
Trucks
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GMC/Chevy
1998-2006 S10/T10/Sonoma
/Blazer/Jimmy
1998-2007 Suburban/Avalanche
/Tahoe/Yukon
1998-2006 Sierra/Silverado
2002-2008 Trailblazer
2003-2006 SSR
1998-2006 C1500/C2500/C3500
1998-2006 K1500/K2500/K3500
2003-2007 Hummer H2
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Isuzu
1998-2000 Hombre
2005-2006 I280/I350
2007-2008 I290/I370
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Cars/Vans
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Isuzu
2003-2007 Ascender
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Pontiac
1994-2003 Grand Prix
1998-1999 Montana
2006 Torrent
1996-2005 Grand AM
1994-1998 Trans Sports
1988-1999 Bonneville
1988-2002 Firebird
1995-2005 Sunfire
1996-2002 Trans Am
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Buick
2004-2007 Rainier
1994-2005 Century
1993-2004 Regal
1982-1999 LeSabre
1991-1996 Park Avenue / Ultra
1994-1996 Roadmaster
1991-1996 Roadmaster Estate Wagon
1982-1999 Riviera
1988-1991 Reatta
1996-1998 Skylark
1982-1990 Electra (all models)
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Oldsmobile
1996-1998 Achieva
1999-2004 Alero
1994-2004 Aurora
1998-2004 Bravada
1991-1993 Delta 88
1994-1999 Eighty-Eight
1991-1996 Nighty-Eight
1998-2002 Intrigue
1990-1992 Toronado
1994-1997 Cutlass Supreme
1997-1999 Cutlass
1997-1999 LSS/Regency
1997-1999 Silhouette
1991-1996 Custom Cruiser
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Chevrolet/GMC
1998-2005 Astro/Safari
1998-2008 Envoy
2005-2006 Equinox
1998-2007 Savana/Express
1995-2005 Monte Carlo
1997-1999 Venture
1995-2001 Lumina
1988-2002 Camaro
1995-2005 Cavalier
1982-2004 Corvette
1994-1996 Caprice/Caprice Wagon
1995-1996 Impala SS
2000-2005 Impala
1997-2005 Malibu Classic
1997-2003 Malibu
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Cadillac
1986-1993 Allante
1982-1996 Fleetwood
1985-1996 Fleetwood Brougham
1992-2004 Seville
1992-2004 SLS/STS
1985-1999 Deville
1994-1999 Deville Concours
1997-1999 Deville D'Elegance
1988-2002 ElDorado
1994-2002 ElDorado Touring
1999-2007 Escalade
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Saturn
2000 LS/LS1/LS2/LW1/LW2
2001-2002 L100/LW100
2001-2003 L200/LW200
2001-2005 L300/LW300
2004-2005 L-Series
2002-2008 VUE
1996-2002 SL/SL1/SL2
1996-2002 SC1/SC2
1996-2002 SW1/SW2

If the steering and suspension parts are OK, could be a lot of things such as loose parts around the engine (e.g. battery tie-down, bumper cover, etc.). Unfortunately, if a shift solenoid is an issue, the shop is correct and just the start of problems with the transmission. These transmissions are pretty rugged, but they have to be serviced every 80K miles or so or this will happen.

lots of issues seperate ones at that runner lights have a sensor and relay tracton control faults > ..ABS module or wheel /speed sensor faults colling system >directional flap motors faulty

O2 sensors are all screwed into exhaust system there are from 1(older) to 4 (modern 2 exhaust circuits). The uppers are located before the catalytic converter and the lowers after the catalytic converter. They generally need to be replaced between 50-100,00miles as recommended by the manufacturer.

Are the cooling fans coming on ? Go under the hood in the engine compartment , with the vehicle running have some one turn on the A/C , do you see and or hear the cooling fans come on ? Could be the coolant temperature gauge is bad ! How many miles on the vehicle ? Ever have water pump replaced ? 1 Check for a loss of system pressure. Is there a loss of system pressure? -- Go to Step 2 yes Go to Step 3 no 2 Inspect and repair any faulty hose connections. Does the engine still overheat? -- Go to Step 3 yes System OK 3 Check for low coolant protection (-37?°C/-34?°F). Is there low coolant protection (-37?°C/-34?°F)? -- Go to Step 4 yes Go to Step 5 no 4 Test solution. Replace the coolant if necessary. Does the engine still overheat? -- Go to Step 5 yes System OK 5 Check the water pump belt for low tension. Is the water pump belt tension too low? -- Go to Step 6 yes Go to Step 7 no 6 Replace the water pump belt tensioner. Does the engine still overheat? -- Go to Step 7 yes System OK 7 Check for an inoperative thermostat bypass. Is the thermostat bypass inoperative? -- Go to Step 8 yes Go to Step 9 no 8 Replace the bypass. Does the engine still overheat? -- Go to Step 9 yes System OK 9 Check the water pump. Is the water pump inoperative? -- Go to Step 10 yes Go to Step 11 no 10 Replace the water pump. Does the engine still overheat? -- Go to Step 11 yes System OK 11 Check the radiator fins for obstruction. Are the radiator fins obstructed? -- Go to Step 12 yes Go to Step 13 no 12 Inspect and clean the radiator fans. Does the engine still overheat? -- Go to Step 13 yes System OK 13 Check the cooling system passage for obstruction. Is the cooling system passage blocked? -- Go to Step 14 yes Go to Step 15 no 14 Inspect and flush the system. Reroute or replace the hose if necessary. Does the engine still overheat? -- Go to Step 15 yes System OK 15 Check the water pump belt for damage. Is the water pump belt damaged? -- Go to Step 16 yes Go to Step 17 no 16 Replace the water pump belt. Does the engine still overheat? -- Go to step 17 yes System OK 17 Check the cooling fans. Are the cooling fans inoperative? -- Go to Step 18 yes Go to Step 19 no 18

1. Inspect the electrical connector. Replace if necessary.
2. Does the engine still overheat?

-- Go to Step 19 yes System OK 19 Check the throttle body circuit flow. Is the throttle body circuit flow restricted? -- Go to Step 20 Go to Step 21 20

1. Inspect the orifice and associated hose. Replace if necessary.
2. Does the engine still overheat?

-- Go to Step 21 System OK 21 Check for a stuck thermostat. Is the thermostat stuck in the closed position? -- Go to Step 22 -- 22 Replace the thermostat. Does the engine still overheat? -- -- System OK

On the web

Power seat operation erratic : Cadillac Eldorado Common ...

repairpal.com > Problems > Cadillac > Eldorado Cadillac Eldorado Power seat operation erratic. This is a verified problem based on 26 reports. Learn more about this problem, when it occurs and how to fix it. ... 13 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 ... Come back and drivers seat will not move.

autozone .com just open a free account and u can look at any manual for free

Have you checked; the fuse, the bulb, the ground cable?

nooooo

A new battery will not correct a theft activation issue. If the system is activated the theft light will blink and the vehivle may start and stall or not start at all. You can try locking/unlocking doors with key fob to see if the system resets. If it doesn't reset, there is a procedure of turning the key to the on position and leaving it there for 15min. Turn key off and then try and start vehicle. This may reset the security system.

LOCKING THE DOORS WITH THE FOB AND THEN UNLOCKING THE DOORS WITH THE FOB WILL RESET THE FACTORY ANTITHEFT SYSTEM.