Lexus GX 2004-09 :: High Squeal Every Time Crank Engine And When AC Compressor Is Engaging
Apr 19, 2013
The truck has been putting off a high squeal every time I crank the engine and when the A/C compressor is engaging.
My first idea was the accessory belt slipping on the compressor when its clutch kicked in. So I replaced the belt. The sound has dissipated a bit but is still there on initial start up and periodically while the A/C is on in the truck. If I turn the A/C button in the cab off the sound quits altogether.
My next idea is the A/C clutch. I prefer to work on my cars myself so if you can just replace the clutch without doing the whole compressor? The compressor works amazing and the truck gets ice cold in the TX heat so if I can keep it while just doing the clutch that would be amazing.
View 12 Replies
Advertisement
A high pitched squeal appears to come from the front of the a/c compressor whenever the clutch engages. When the clutch disengages the compressor stops spinning, and the squeal stops. I can watch and listen to this as the system cycles with the a/c switched on. If I turn off the a/c, no squeal. I'm guessing the bearings in the compressor are going out. However, the system still cools normally, so apparently no gas has leaked out.
Does this imply the compressor must be replaced, or could injection of some oil into the system possibly fix it...?
This car only has 73,000 miles on it. I've owned 2 other TB's and a couple classic Mustangs with much higher miles and never seen an a/c compressor bearings fail.
View 1 Replies
First warm week of the year now my 2014 is blowing hot air! I played with all the appropriate buttons. Air on, air off, tried voice commands and no luck. From what I have read is could be the pressure switch or the compressor. The compressor is definitely not engaging and at 17,500 miles I would think there was still freon in it. I have not done a system diagnosis yet..not sure how.
View 10 Replies
I just bought a 2006 F150 SuperCrew with a 5.4L engine and since the weather has turned cold, I've noticed an intermittent high pitched squeal coming from the engine compartment. I've replaced the serpentine belt and the idler pulley plus another belt pulley but none of the above worked.
I've also had two separate mechanics look at the problem and both are at a loss as to what could be causing the noise. The guess is maybe its an air leak coming from either the intake or vacuum lines. But nobody is really sure.
The noise seems to really become noticeable when the temperature gets below 20 degrees and around 2000 rpms, but sometimes it happens at other times. Where this extremely annoying sound might be coming from?
View 14 Replies
My mother in law has a Santa Fe 2004 with a ~2.4. The AC compressor quit working over the winter. The AC compressor does not react to turning on the AC button.
I checked the fuses. I also tried changing out the AC relay with another one and it still didn't respond. The relay also didn't sound as though it was clicking over. The AC indiacator light is working.
Could it be the actual button has failed or is there a way to check if the button is functioning?
How does the compressor know to engage? Is there a place I can test 12v at the compressor?
View 6 Replies
Taking my car to get the brakes serviced this week. Every time I brake at a high speed the car shakes. I am guessing best case scenario I get the rotors resurfaced and worse case new rotors.
View 9 Replies
I only use AC in the summer around here, not year 'round. When I turn it on, I notice that the engine revs higher when turning the compressor, which cycles on and off. It's only a few hundred RPM, but it's quite noticeable and will make the truck surge forward when sitting at a traffic light. The dealer says this is how the AC works on a GX, so I've gotten used to it.
View 12 Replies
So, last week, I heard this high pitched squeal coming from the wheel well. At low speeds it seemed. It was in a parking garage.
But then, it disappeared. All of a sudden, I'm reversing into a spot barely touching the brake and it's squealing again.
I then take it again for a spin around the garage, no sound. I reverse again, no sound.
A few days later, I'm pulling out of the garage and the sound is so loud my GF could hear it from within another car behind me. It squeals until I start going faster and I'm on the highway. I get to my destination, ask my friend who is good with cars to check it out. But of course, I couldn't recreate the sound. Tried going slow, backing up, braking, going faster, etc.
So, do you know of a sound that would be very loud one day and completely go away the next? I saw some things about a shim or clip on the brake pad possibly touching the rotor or is loose?
View 6 Replies
My Lexus Rx350 (2007) having problem starting the car when the engine is cold or switch off more than 1-2 hours. I need to crank the car at least 2-3 times to get the engine run. Once the engine run, i have no problem restarting the car with a single crack.
View 5 Replies
My truck started making this whistling sound a few thousand miles ago. Its a high pitched squeal coming from somewhere under the hood. There doesn't seem to be any pattern or certain time when it does it. Ive read on here about an alternator problem on these trucks. Or could it be my S&B intake?
View 13 Replies
I have a high pitched squeal coming from the back windows during operation. I am pretty confident it's not the window assembly itself (linkage, track, etc in the door), but rather the weatherstripping type material that physically lays against the glass at the bottom of the window opening on the door. This happens in both up and down directions of the window.
It DOES NOT squeal when the material is wet, and thus is the reason that I've been able to pinpoint the cause. It's likely that the window channels could be contributing to this as well. The problem is...I don't know how to solve this without applying a lubricant that will smear/streak my windows.
I've already taken clean rags and wiped both the inner and outer portions of this material to remove dirt and dust that they gather...no change in the noise. Is there a way to "condition" the material so they will soften up, without leaving a residue that will streak the window?
View 10 Replies
I just brought home an 04 F350. It is a V10, 6 speed, with 30,600 verified miles on it. It runs and drives fantastic, and that V10 is impressive! I am very impressed. I have noticed that the compressor cycles, even with the dial in the off position. Is this normal for the super duty, or is something amiss? If something is wrong, what direction do I look in?
View 13 Replies
I have an 06 F350 diesel, I had some work done on it that required the body to be raised on it. After I got it back the A/C didn't blow cold. I put it off for a while since I didn't need it. Anyways, the clutch isn't engaging so the compressor doesn't spin.
Things I have checked: Compressor rotates smoothly by hand. No blown fuses or bad relays (checked them all with meter). No results when jumpering the Hi/low press switches. Tried charging the system and the gage I got with the can goes to 80# and it maxed out. For the air gap on the clutch/shim idea, I tried pushing in on the clutch while it was running with a long extension to see if I could get it to engage, no luck
View 2 Replies
Last year my a/c worked off and on. so far now its not working at all. Compressor isn't kicking on. i bought a bottle of the EZchill refrigerant to recharge the system. I took the relay out and added 12+ to the pin to kick on the compressor. Even with the compressor running the gauges are in the blue range which is the normal operating range. With the compressor running, the air is cold but when i stick the relay back in the compressor wont kick back on. I tested the relay and its fine. Also the compressor is rattling.
View 8 Replies
So I have a 2005 gli here is what's going on. The ac compressor is not engaging, the reticulation button is not lighting up when pressed in, the cruise control is not coming on and the daytime running lights are not turning off when the hand brake is engaged. And the radiator cooling fans to not spin when the engine is first started. I have checked all the fuses inside and over the battery. I have checked the relays ( they click when hooked up to power). I'm suspecting a bad fan control module. I've done some searching and that's the only thing I have found that would control the fans and the ac.
View 2 Replies
129k miles, first time ever noticed a/c compressor not engaging -- hadn't tried a/c in a few months, winter and all... Jumpered the cycle switch and determined it was low pressure situation -- took to dealer, who recharged/diagnosed leak situation. Compressor oil leak at front seal (needs replacement) and refrigerant leak at manifold hose assembly.
However - compressor running nice and quiet, after recharge, no problems, silent operation. Couple questions:
1. Ford manual says no need to replace accumulator unless there is evidence of compressor failure (which mine hasn't yet) -- is that 'evidence' trash in the orifice tube? If so, where precisely is it? I know it's in one of the tube assemblies, but can't visualize the location from the diagrams.
2. Since my compressor hadn't failed, still running quiet/smooth, can I just replace that and the leaky hose assembly and be done w/it?
3. Is this a job that's beyond the moderately skilled garage mechanic? I handle most of my own jobs with exception of heavy engine (i.e., heads, etc) but have never attempted a/c-related due to the refrigerant portion of this job. I'm sure I can obtain the proper vacuum equipment somehow, if it's something that's not too overly complicated...
View 2 Replies
I own 2013 Mk6 GTI. I am having to over crank the engine for a period of 8 seconds or so before the car starts, especially after it has been sitting for a few hours. My thought was a faulty check valve in the fuel pump. I have heard that our fuel filter has a built in pressure regulator that may get stuck open for whatever reason and that may also cause a long crank time.
View 9 Replies
I have a 1991 Bonne LE with 150,000 miles. Have had GREAT luck with this car but realize it is getting high miles. I recently drove it about 250 mile trip and the A/C worked perfectly staying nice and cold. The next time I drove it, when I turned the A/C on, it got cold after about 5-10 seconds and then it was like you turned only the blower on with no A/C. It does the same thing every time I turn the A/C on, gets cold fast, then just neutral temp with no cold air.
I checked the compressor switch and it is working fine, and the compressor is engaging and staying engaged, but not outputting cold air except for the first 10 seconds or so. I do believe the temperature door inside the dash is opening properly. What I might check myself before taking the car in for A/C service? I am capable of replacing the compressor & seals myself but would have to have someone discharge the system and then recharge it afterwards.
The car is a rebuilder that I bought about 10 years ago. The fellow (very trustworthy) who rebuilt it replaced all the A/C o-ring seals when I bought it and made sure the system was fully charged. It has worked perfectly this whole time. He also gave me the a/c compressor and other parts from the parts car that was used to rebuild this one.
View 2 Replies
2002 1500 4WD 126K miles. A/C not working, compressor does not engage when A/C is switched on. Is there an interlock if the refrigerant level is too low to keep the compressor from engaging? Original owner, A/C has never been recharged. Is recharging my best first step.
View 2 Replies
AC stop working after an alternator replacement ?. I tried crawling under the truck to see if the mechanic didn't plug the compressor back in as he said he had to take it off to get the Alt out, but it looks like the plug is fine. Would the refrigerant have leak all out when he took it off ?. Should I try to re - charge myself with Red - tek kit from Canadian tire ?. The compressor will spin easy enough when I reach down and move it by hand but will not engage when I press in the AC buttons.
View 4 Replies
l have a 2000 model accent and the air conditioner compressor clutch is not engaging . you press the 'AC 'button and the indicator comes on when a fan speed is selected which l am sure is the correct operation.l checked for 12 volts at the coil terminals of the relay and there is no 12 volts.l shorted the switch contacts of AC relay and the compressor did engage so the wiring from the relay base to the the compressor clutch is ok. l also checked the contacts of the 'AC' switch itself and it seems to be ok. l haven't had much luck with sorting out the wiring from the switch to the relay as l do not have a wiring diagram.
View 4 Replies
