What can be the cause for engine coolant leakage on my 1987 Mercury Grand Marquis ?

105

Asked by May 04, 2014 at 05:33 AM about the 1987 Mercury Grand Marquis

Question type: Maintenance & Repair

My '87 Mercury Grand Marquis is loosing some engine coolant. There are 2 water spots on the floor - one in the front located near the water pump, the other behnd the engine. Can' t locate where the coolant is coming from. If it is the water pump - can it als be the cause for the rear spot ?

4 Answers

10,375

It could be. The water could be running down under the pan before dripping off. I would suspect the water pump. When the seal goes bad in the pump the water blows out, often this is the issue with cooling systems.

2 out of 2 people think this is helpful.
Best Answer
105

What if it's not the water pump ? How big is the risk that the coolant leakage is being caused by a bad cylinder head gasket ? Today I added some contrast agent. Maybe this will help to find the exit point.

10,375

A bad head gasket is always a possibility, especially seeing that it's an 87. For your sake I hope it's not, but a good inspection will be necessary to pinpoint where the coolant is coming out. Also, I would recommend checking your oil thoroughly to make sure coolant isn't mixing with it as it would be a possibility with a faulty head gasket. This would obviously cause larger problems and I would park it until you can get the gasket(s) replaced.

105

It seems to be the water pump gasket. The fluorescent agent I added to the cooling system days ago helped to locate where the coolant is coming out. Indeed, it is running down the engine block in the front area, then running along the oil pan gasket to the back and dripping off near the torque converter cover. So both spots have the same cause ! Thanks Mark, your answer was very helpful.

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 2,148 nationwide Grand Marquis listings starting at $1,985.

ZIP:

Search Mercury Grand Marquis Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,030
#2 kbro
kbro
Reputation 2,030
#3 Js08016
Js08016
Reputation 1,580
View All

Related Models For Sale

Used Ford Crown Victoria
4 Great Deals out of 1,394 listings starting at $1,700
Used Lincoln Town Car
36 Great Deals out of 2,144 listings starting at $1,995
Used Dodge Charger
474 Great Deals out of 30,158 listings starting at $2,275
Used Ford F-150
3,031 Great Deals out of 207,234 listings starting at $1,990
Used Cadillac DeVille
4 Great Deals out of 1,954 listings starting at $1,600
Used Honda Accord
992 Great Deals out of 74,858 listings starting at $899
Used Buick LeSabre
13 Great Deals out of 2,251 listings starting at $1,299
Used Ford Taurus
302 Great Deals out of 21,176 listings starting at $1,500
Used Toyota Camry
1,183 Great Deals out of 95,109 listings starting at $1,250
Used Chevrolet Camaro
437 Great Deals out of 40,503 listings starting at $3,500

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
45 listings starting at $7,500
2010 Mercury Grand Marquis For Sale
5 Great Deals out of 121 listings starting at $2,999
2009 Mercury Grand Marquis For Sale
4 Great Deals out of 106 listings starting at $2,995
2008 Mercury Grand Marquis For Sale
4 Great Deals out of 155 listings starting at $2,995
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 163 listings starting at $1,985