1999 Mercury Grand Marquis - coolant leak that is causing a misfire repair

Watch as I repair a coolant leak that is leading to a misfile and rough idle on my 1999 Mercury Grand Marquis. The initial symptoms were the check engine light and the OBD2 code P0304.

How to change a intake manifold Grand Marquis
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How to change a intake manifold Grand Marquis

Finding Coolant Leak on 99 Mercury Grand Marquis
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Finding Coolant Leak on 99 Mercury Grand Marquis

Signs of Bad Water Pump vs Bad Thermostat Symptoms(How to  Fix and Diagnose Correctly)
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Signs of Bad Water Pump vs Bad Thermostat Symptoms(How to Fix and Diagnose Correctly)

Crown Victoria Intake Manifold Replaced! If I can do it..........
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Crown Victoria Intake Manifold Replaced! If I can do it..........

Top 5 Problems Mercury Grand Marquis 2003-2011 5th Generation
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Top 5 Problems Mercury Grand Marquis 2003-2011 5th Generation

ASMR Addictive Fast Tapping Collection For Deep Sleep & Anxiety Relief (No Talking) — 2.5 Hours
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ASMR Addictive Fast Tapping Collection For Deep Sleep & Anxiety Relief (No Talking) — 2.5 Hours

Ford 4.6 2V Engine with No Power, Crown Victoria Leaking Water💦, Broken Intake
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Ford 4.6 2V Engine with No Power, Crown Victoria Leaking Water💦, Broken Intake

Here’s Why Ford is Stupid for Not Making This Car Anymore (Best Used Car)
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Here’s Why Ford is Stupid for Not Making This Car Anymore (Best Used Car)

How to replace the thermostat in a Mercury Grand Marquis, overheating. - VOTD
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How to replace the thermostat in a Mercury Grand Marquis, overheating. - VOTD

Lincoln Town Car Coolant Leak Repair - 4.6 SOHC Composite Intake Manifold
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Lincoln Town Car Coolant Leak Repair - 4.6 SOHC Composite Intake Manifold

99 Mercury Grand Marquis 4.6 misfire diagnostic and fix.
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99 Mercury Grand Marquis 4.6 misfire diagnostic and fix.

Ford 4.6L V8 Intake Manifold Cracked or Melted Coolant Inlet Fix DIY
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Ford 4.6L V8 Intake Manifold Cracked or Melted Coolant Inlet Fix DIY

2001 MERCURY / FORD GRAND MARQUIS 4.6L V8 THERMOSTAT & COOLANT TEMP SENSOR | DTC P0125 HELP / TIPS
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2001 MERCURY / FORD GRAND MARQUIS 4.6L V8 THERMOSTAT & COOLANT TEMP SENSOR | DTC P0125 HELP / TIPS

Found Puddles Under Your Car or Truck? How to Diagnose Coolant Leaks!
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Found Puddles Under Your Car or Truck? How to Diagnose Coolant Leaks!

Mercury Grand Marquis Blend Door Actuator and EATC Vacuum Leak
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Mercury Grand Marquis Blend Door Actuator and EATC Vacuum Leak

Unbelievable Smart Worker & Hilarious Fails | Construction Compilation #5 #adamrose #smartworkers
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Unbelievable Smart Worker & Hilarious Fails | Construction Compilation #5 #adamrose #smartworkers

1999 Mercury Grand Marquis AC Clutch Replacement
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1999 Mercury Grand Marquis AC Clutch Replacement

2004 Mercury Grand Marquis Intake Manifold Leaking Coolant
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2004 Mercury Grand Marquis Intake Manifold Leaking Coolant

Before Replacing Your $10,000 Engine, Try THIS $1 Vinegar Trick First (Mechanic HATE It)
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Before Replacing Your $10,000 Engine, Try THIS $1 Vinegar Trick First (Mechanic HATE It)

2003 Mercury Grand Marquis Radiator Hose Replacement
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2003 Mercury Grand Marquis Radiator Hose Replacement