Advice Needed.
Fleet Mechanic
Joined: Jan 2007
Posts: 1,741
Likes: 3
The burning smell may be from the compressor clutch burning itself out, possibly by a short, or a crack in the insulation.
100 degree air temps mean pavement temps in the 130-140 range.
With the mileage on the vehicle, the compressor clutch simply may have died from old age.
-blaine
100 degree air temps mean pavement temps in the 130-140 range.
With the mileage on the vehicle, the compressor clutch simply may have died from old age.
-blaine
Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
I would install coolant filter now!
It will get a head start on removing stuff and hopefully reduce the stuff you stir ip during the flush -your later.
Its possible you a/c compressor overheats from low refrigerant and then siezes up causing the smell and chirp.
Might have cascading of issues from one root cause.
Good luck
It will get a head start on removing stuff and hopefully reduce the stuff you stir ip during the flush -your later.
Its possible you a/c compressor overheats from low refrigerant and then siezes up causing the smell and chirp.
Might have cascading of issues from one root cause.
Good luck
Elder User
Joined: Apr 2006
Posts: 524
Likes: 0
From: Taylorsville, UT
While driving through the night I did notice that my headlights and instrument panel seemed to be pulsating for the last few hours of the drive. With the edge I have seen that my FICM levels drop when I start but my battery voltage stays in the 13.5 on up. I have not had a chance to load test my batteries yet, but plan to before I spend the money on a new FICM. What would cause the lights to pulsate? I was thinking about the alternator, but if the battery voltage remained pretty high doesn't that rule it out?
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Freshman User
Joined: May 2013
Posts: 26
Likes: 0
I would install coolant filter now!
It will get a head start on removing stuff and hopefully reduce the stuff you stir ip during the flush -your later.
Its possible you a/c compressor overheats from low refrigerant and then siezes up causing the smell and chirp.
Might have cascading of issues from one root cause.
Good luck
It will get a head start on removing stuff and hopefully reduce the stuff you stir ip during the flush -your later.
Its possible you a/c compressor overheats from low refrigerant and then siezes up causing the smell and chirp.
Might have cascading of issues from one root cause.
Good luck
1. Just replace the clutch and hope nothing else is wrong. Est $120 just parts
2. Replace the compressor, clutch and evaporator and have the lines vacuumed and recharged. Est $1,000 labor and parts
3. Wait a little while until I have the $$$ for bullet proofing and have it done then. My tech basically said that while the cab is off he can pretty much knock that swap out and won't tack on any labor. Labor $2,500 for everything including the studs. Parts can be bought on my own or through him for roughly another $2,000-2,500. (Not including ac parts)
The fICM I will most definitely use Ed for, I still want to check my batteries and alt before go that route.
I plan to install the coolant filter this weekend at the minimum.
Thanks again for all the help. What are y'all's experiences with ac clutch replacement and reliability? How does the bullet proofing labor sound? I bought this truck as a baby hauler/trip taker and want reliability....I am leaning towards the whole package but it is just a whole lot to take on.
Fleet Mechanic
Joined: Jan 2007
Posts: 1,741
Likes: 3
My (limited) experience has been that it's far more difficult to find a mere clutch than it is to find an "assembled" compressor with clutch. Additionally, once you find it, the cost of the bare clutch is 50-75% of the cost of the combo. Compare that with the cost of recovering the refrigerant and evacuating the system. If you don't have the extra cash, the clutch by itself is the way to go.
Use these folks to get your parts:
Omega-usa.com Automotive A/C Air Conditioning
They have an extensive parts catalog, and the people behind the catalog(s) know how to use them.
I used them because when I needed parts, they were literally three blocks away. And they were cheaper than anyone else in town.
The clutch swap itself is fairly easy to do. You just need a clutch puller to do it. Those run about $40. Autozone rents them.
-blaine
Use these folks to get your parts:
Omega-usa.com Automotive A/C Air Conditioning
They have an extensive parts catalog, and the people behind the catalog(s) know how to use them.
I used them because when I needed parts, they were literally three blocks away. And they were cheaper than anyone else in town.
The clutch swap itself is fairly easy to do. You just need a clutch puller to do it. Those run about $40. Autozone rents them.
-blaine
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