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

115

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

11,605

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 of 2 people found this helpful.
Best Answer
115

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.

11,605

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.

115

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 1,789 nationwide Grand Marquis listings starting at $2,250.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,650
#2 kbro
kbro
Reputation 2,110
#3 Js08016
Js08016
Reputation 1,830
View All

Related Models For Sale

Used Ford Crown Victoria
15 Great Deals out of 1,254 listings starting at $1,995
Used Lincoln Town Car
37 Great Deals out of 1,812 listings starting at $1,495
Used Cadillac DeVille
1,734 listings starting at $1,995
Used Dodge Charger
529 Great Deals out of 28,516 listings starting at $2,500
Used Buick LeSabre
16 Great Deals out of 1,939 listings starting at $1,588
Used Ford Taurus
254 Great Deals out of 18,809 listings starting at $1,499
Used Ford F-150
2,110 Great Deals out of 192,319 listings starting at $290
Used Ford Mustang
708 Great Deals out of 44,429 listings starting at $1,500
Used Honda Accord
1,031 Great Deals out of 67,107 listings starting at $1,000
Used Toyota Camry
1,198 Great Deals out of 83,219 listings starting at $750

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
25 listings starting at $6,000
2010 Mercury Grand Marquis For Sale
86 listings starting at $4,490
2009 Mercury Grand Marquis For Sale
6 Great Deals out of 88 listings starting at $2,950
2008 Mercury Grand Marquis For Sale
8 Great Deals out of 161 listings starting at $2,250
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 130 listings starting at $2,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.