Project Cars or Member’s Cars sub forum for the build threads so readers can follow the creation or re-creation of a high performance Caddy. Whether it is a CTS-V, a 1970 Eldorado, a Northstar powered Eldo, etc. , an organized way of finding and enjoying and learning from others who have the need to modify their rides for performance or racing.
Looking for a reliable and trustworthy auto repair shop? Look no further! B & B Automotive LLC offers all-inclusive service across most major brands and half off Dealer prices. Featuring Head Studs for Cadillac Repairs.
I would also pull the MAP-connector (it sits on top of the throttle body), spray it with WD40 and disconnect/connect the connector 10-15 times. This excercise cleans the connector and restores the connectivity. Also try to wiggle the cables with car running and see if you can get it to stall. If you have a problem with a bad connection (apart from the oxides that you cleaned away in the previous step) it can either be the connector itself or the wires. I had a code for the MAP-sensor a couple of years ago and a little love and WD40 solved it
Keep in mind that we just left the summer temperatures. High temps cause higher system pressures. Some leaks only happen when the system pressure reaches a specific pressure, say for example 14 psi, if the system doesnt reach 14 psi, there will be no coolant leak.
Leak points to be examined are:
Radiator end tanks, look for white residue where the tanks attach and for cracking
The radiator itself, where the horrizonal tubes attach to the side tanks
Waterpump seal and body o-ring
Tank may be cracked
Radiator cap releasing lower than rated pressure
Coolant pipes at back of engine
Thermostat seal and cover leaks
Remember if you smell coolant that is a pressure leak. Coolant under pressure vaporizes when it hits atmospheric pressure, you won't see a leak you will smell a leak
New Guy here.I owned a 96 Eldorado years ago and loved it.It was stolen.I bought an 03 Mercury Marauder brand new.I drove it for 13 years.I did a lot of modifications to that car,very fast..In 2016 I bought a new Challenger,V6 305HP.I never really adapted to the car and wanted that Caddy ride....I just bought an 02 Eldorado.Love it..It needs some love..I'll be asking questions for sure.Thanks for having me.