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Coolant smell in interior

 
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  #1 (permalink)  
Old 05 Jul 2013, 12:46 pm
Regular Cruiser
 
Join Date: Jul 2009
Posts: 109
Wink Coolant smell in interior

We're getting a slight but noticeable coolant smell in the interior of our '06 GT

Can't find anything wet on the engine or inside the car.

Wondering if it could possibly be the heater core starting to leak?

Car has 55k miles on it

How hard is it to change the heater core?
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Old 05 Jul 2013, 01:33 pm
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Join Date: Sep 2001
Posts: 27,744
Default Re: Coolant smell in interior

Older post.....

heater core replacement
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Old 05 Jul 2013, 01:56 pm
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Location: USA kalyfornia
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Default Re: Coolant smell in interior

Check the condition of the coolant recovery tank and the radiator cap. If they appear to be in good condition then have a shop pressure test the complete system before assuming the worst.
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Old 05 Jul 2013, 03:00 pm
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Join Date: Mar 2012
Location: darien il
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Default Re: Coolant smell in interior

mine smells a little. only when the dial is set to heat though. if i have the blower set to cool and then flip it to hot the smell gets stronger within 5 seconds or so. try it and see if this is how yours is.

mine's been like this since the day i got my car(50,000 miles ago). it doesn't really bother me, and it hasn't caused any problems. sometimes the smell goes away, sometimes it comes back. it doesn't appear to lose coolant, so i have no plans to rip my car apart anytime soon.
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Old 05 Jul 2013, 03:01 pm
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Join Date: Mar 2012
Location: darien il
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Default Re: Coolant smell in interior

here's for the dash removal/installation

INSTRUMENT PANEL ASSEMBLY

REMOVAL

Open hood.

Fig. 14 Battery Negative Cable Removal/Installation


Disconnect and isolate the battery negative cable (Fig 14).

Fig. 15 Instrument Panel Assembly


Remove the instrument panel top cover (Fig. 15).

Using a trim stick (special tool C-4755) or equivalent, gently pry off the left and right A-pillar trim.
Using a trim stick or equivalent, gently pry out the front power window switch from the instrument panel center bezel. Disconnect the harness connector and remove. c.Remove the one center bezel retaining screw.

Pull off the HVAC control knobs.
Using a trim stick or equivalent, gently pry off the center bezel and remove.
Remove the two top cover retaining screws.
Gently pull rearward on the top cover and unlatch it from the instrument panel and remove.

Remove two screws retaining HVAC control.
Pull the HVAC control out of instrument panel, disconnect the one wiring connector, the one vacuum harness connector, and disconnect the two control cables. Remove HVAC control from vehicle.
Remove the two retaining screws to the upper and lower steering column shrouds.
Gently pry the upper and lower shrouds apart and remove from steering column.
Remove the left lower instrument panel bezel. Pull top rearward, lower to floor and with a quick pulling motion remove off instrument panel.
Disconnect the steering column wire connectors:

Ignition Switch
Multi-Function Switch
Clockspring

CAUTION: Lock the steering wheel in the straight ahead position. This will prevent clockspring damage when the steering wheel rotates freely.

Remove steering column:

Remove the steering column pinch bolt at the base of the lower coupler.
Remove the four retaining nuts to the steering column.
Pull column rearward and out of instrument panel opening and remove from vehicle.

Fig. 16 Brake Pedal Support Bracket Instrument Panel Retaining Bolts


Remove the two brake pedal support bracket, instrument panel retaining bolts (Fig. 16).
Remove two screws to the left instrument panel end cap.
Pull the left end cap rearward to unsnap and remove it from vehicle.
Disconnect the five left side wiring connectors:

Data Link Connector
Two main instrument panel connectors.
Brake Switch
Left Side Body Harness
Left Door Harness

Fig. 17 Instrumental Panel


Remove the two left side A-pillar, instrument panel retaining bolts (Fig. 17).

Fig. 18 Instrument Panel Center Support Retaining Bolts


Remove two retaining bolts at the left side of the center support bracket (Fig. 18).
Remove four screws to center console.
Using a trim stick or equivalent, gently pry rear power window switch out of console and disconnect wiring and remove.
Pull parking brake handle all the way up.
Lift up the front of the center console to gain access to the power outlet connector.
Disconnect one wire connector to console mounted auxiliary power outlet.
Pull up on rear of console first to clear parking brake handle and remove from vehicle.
If equipped with an automatic, remove the shifter handle and shifter bezel.

Shifter Handle - Loosen the set screw retaining the shifter handle and pull up on handle to remove.
Shifter Bezel - Pull upward on edge of shifter bezel, disconnect the illumination lamp and remove bezel.

Disconnect and remove the two remaining center console wiring connectors:

Occupant Restraint Controller (ORC) connector
Park Brake Switch connector

Remove two retaining bolts at the right side of the center support bracket (Fig. 18).

NOTE: The center console wiring is routed underneath the rear floor heat duct. Loosen the retainers holding down the heat duct and you can maneuver the wiring from underneath it without removal.

Remove glove box assembly:

Open glove box and push in on the sides of the glove box bin to allow the retainers to clear the instrument panel.
Let the glove box drop down and give it quick pull downward to disengage the hinge.

Remove two screws to the right instrument panel end cap.
Pull end cap rearward to unsnap and remove from vehicle.
Remove the two right side A-pillar, instrument panel retaining bolts and one nut (Fig. 17).
Disconnect the right side instrument panel wire connectors:

Antenna

Fig. 19 Instrument Panel To Overhead Systems Jumper Harness Connector Typical Left Or Right


Overhead Systems (Fig. 19)
Blower Motor
Left Door Harness
Body Harness

Fig. 20 Instrument Panel Fence Line Retaining Bolts


Remove the four fence line instrument panel retaining bolts (Fig. 20).
With the help of an assistant, carefully remove the instrument panel from the vehicle being careful not to damage the instrument panel or vehicle interior.

NOTE: If the instrument panel is being replaced, all the components left on the assembly must be transferred.

This would include:

Passenger Airbag
Instrument Cluster and Bezel
Cluster Area Support Panel
Remote Keyless Entry Module (if equipped)
Radio
Accessory Switch Bezel
Left and Right Instrument Panel Speakers
Instrument Panel Wire Harness
Right Instrument Panel A/C Outlet Housing Assembly
All A/C and Heat Duct work and Plumbing

INSTALLATION

With the help of an assistant, carefully install the instrument panel in the vehicle being careful not to damage the instrument panel or vehicle interior.
Install the four fence line instrument panel retaining bolts (Fig. 20).
Connect the right side instrument panel wire connectors:

Antenna
Overhead Systems (Fig. 19)
Blower Motor
Left Door Harness
Body Harness

Install the two right side A-pillar, instrument panel retaining bolts and one nut (Fig. 17).
Place the right end cap in position and snap into place.
Install two screws to the right instrument panel end cap.
Install glove box assembly:

Place glove box assembly in position and make the orientation of the hinge is correct and snap glove box assembly hinge into place (Fig. 9).
Lift glove box assembly up, push in on the box/bin sides to allow the glove box to pass by the instrument panel.
Close glove box.

NOTE: The center console wiring is routed underneath the rear floor heat duct. You can maneuver the wiring underneath the rear seat heat duct without removal.

Install two retaining bolts at the right side of the center support bracket (Fig. 18).
Connect the following two center console wiring connectors:

Occupant Restraint Controller (ORC) connector
Park Brake Switch connector

If equipped with an automatic, install the shifter handle and shifter bezel.

Shifter Bezel - Connect the illumination lamp, place in position and snap into place.
Shifter Handle - Place the shifter handle on the shifter assembly tighten the set screw retaining the shifter handle.

Place front of console into place and then rear over parking brake handle.
Lift up the front of the console and connect one wire connector to console mounted auxiliary power outlet.
Release parking brake handle.
Connect wiring to rear power window switch and snap into rear of center console.
Install four screws to center console.
Install two retaining bolts at the left side of the center support bracket (Fig. 18).
Install the two left side A-pillar, instrument panel retaining bolts and one nut (Fig. 17).
Connect the five left side wiring connectors:

Data Link Connector
Two main instrument panel connectors.
Brake Switch
Left Side Body Harness
Left Door Harness

Place the left end cap in position and snap into place.
Install two screws to the left instrument panel end cap.
Install the two brake pedal support bracket, instrument panel retaining bolts (Fig. 16).
Install steering column:

Place column in instrument panel opening.
Install the four retaining nuts to the steering column.
Install the steering column pinch bolt at the base of the lower coupler.
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Old 05 Jul 2013, 03:01 pm
Veteran Cruiser
 
Join Date: Mar 2012
Location: darien il
Posts: 4,592
Default Re: Coolant smell in interior

Connect the steering column wire connectors:

Ignition Switch
Multi-Function Switch
Clockspring

Place steering column cover in position and make sure the orientation of the hinge is correct and snap bezel hinge into place.
.Rotate steering column cover upward and snap into place.
Place upper and lower steering column shrouds into place and snap together.
Install the two retaining screws to the upper and lower steering column shrouds.
Place HVAC control head into place in instrument panel.
Connect the following onto the HVAC control head:

Two control cables
Vacuum harness connector
One wiring connector

Install the two screws retaining the HVAC control head.
Install the instrument panel top cover.

Place the top cover into place. Line up the fasteners with each slot and firmly snap into place.
Install the two top cover retaining screws.
Place the center bezel into position, lining up the fasteners with the slots and snap into place.
Install the HVAC control knobs.
Install the one center bezel retaining screw.
Connect the harness connector to the front power window switch. Align the front power window switch into the instrument panel center bezel opening and snap into place.
Install the left and right A-pillar trim.

Connect the battery negative cable (Fig. 14).
Close hood.
Verify vehicle and system operation.

here's for the heater core replacement. this goes somewhere in the middle there


Remove the HVAC housing.
Disassemble the HVAC housing to access the heater core.

Lower HVAC Housing - LHD Shown, RHD Typical


Lift the heater core out of the lower half of the housing.

INSTALLATION

Install the heater core into the bottom half of the HVAC housing.
Assemble the HVAC housing.
Install the HVAC housing.

i've done the timing belt, the control arms, the clutch, the radiator, the fuel pump, etc, but my car is likely going on craigslist when this needs replacing.
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  #7 (permalink)  
Old 05 Jul 2013, 03:14 pm
Regular Cruiser
 
Join Date: Jul 2009
Posts: 109
Wink Re: Coolant smell in interior

-Holy crap!!!! I hope it doesn't take all that just to change the heater core!

THANKS for the instructions though!
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Old 05 Jul 2013, 03:28 pm
Senior Cruiser
 
Join Date: Nov 2010
Location: oak creek, wi
Posts: 1,149
Default Re: Coolant smell in interior

it pretty much does take all that. well worth the $800 or so to have it done. i justified it by 3 less trips to the casino.

and you might as well replace the a/c evap since it's right next to the heater core.
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