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I have a 1996 mercury grand marquis with a 4.6l that i have…

i have a 1996 mercury...
i have a 1996 mercury grand marquis with a 4.6l that i have problems with it over heating when im driving on the highway, ive tried a couple thermostats, a clutch fan and it will still over heat,
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Answered in 1 minute by:
11/16/2017
david craig
david craig, ASE Certified Technician
Category: Mercury
Satisfied Customers: 5,999
Experience: owner/mechanic at 3D Automotive
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Hi my name is ***** ***** I'll be more than happy to assist you. Please allow me a few minutes to review your information. Thank you

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Have you check for any debris stuck to the radiator or ac condenser?

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Customer reply replied 9 months ago
i havent no,

you may want to. if the engine isn't overheating while sitting at idle, there's a good chance the airflow to the radiator is being obstructed.

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Customer reply replied 9 months ago
it doesnt look like anything is blocking the airflow, i just put another thermostat and held at a faster idle, the antifreeze comes up and when i shut engine off its got pressure at the cap on the over flow,

ok, does the temp gauge indicate normal?

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Customer reply replied 9 months ago
its running on the hot side, but isnt putting out but luke warm air at best
Customer reply replied 9 months ago
the top radiator hose is nice and hot and one hose going to the heater core is hot but the other hose is barley warm

ok did you bleed the air from the system?

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Customer reply replied 9 months ago
does that engine have a bleeder?

standby please

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bleed

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Customer reply replied 9 months ago
taking the water inlet off is how u bleed?

on this engine yes

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Customer reply replied 9 months ago
on the rh cylinder head? do u know if its on the back or front of the head?

where it goes into the rear of the cylinder head.

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I have to get to my shop. I will be back on in about an hour.

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Customer reply replied 9 months ago
that fixed it, i never knew there was a procedure to bleed on that car, thanks alot

you are very welcome. please note customer satisfaction is my number one goal and leaving a 3 stars or more rating for me will be greatly appreciated thank you have a great day

david craig
david craig, ASE Certified Technician
Category: Mercury
Satisfied Customers: 5,999
Experience: owner/mechanic at 3D Automotive
Verified
david craig and 87 other Mercury Specialists are ready to help you
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thank you very much

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