Ac clutch not engaging sometimes 3 oz of refrigerant and not possibly go over the limit of 18. Vehicle/Engine: Toyota Sienna 2008 LE - 171k/ 2GR-FE My Diagnostics: 1- Measured low/high ac static pressure (both around ~100psi with around 95F ) Failed AC system due to the AC compressor clutch not engaging can leave you unsettled, notably during the sweltering summer months. In this video I take you step by step through my diagnostic and troubleshooting procedure for repairing non working air conditioning on a 2006 Ford F150 King If your air conditioning system occasionally blows cold air and then switches to warm or ambient temperature air, the AC compressor clutch may be intermittently engaging and disengaging. If this clutch doesn’t grab, the AC compressor will not turn on. The pressure on the low side was high so he lowered it within range. 2006 Cobalt LT auto sedan. When the heat and air conditioning are turned on, a hissing sound or bad odor indicates that the evaporator coil is faulty or leaking. No change, and could not fully recharge system as clutch was still not engaging (about 4-6 oz low). It is not a high or low pressure switch problem. Compressor is not running. The AC compressor clutch material can wear over time and cause erratic operations due to increased clutch-to-coil clearance. Then disengages again goes to about same pressures and then engages again. when i press ac button the engine fan turned on but it's low speed !! and compressor not working i check the hi side and the low side pressure. Simply remove bolt, remove front clutch plate, remove shim/washer on clutch shaft (its about . Honda Civic 2006 AC clutch disengaging when warm. I have noticed that when it begins blowing warm the AC clutch is not engaged. The 2006 engine has an intake sensor on top of the evaporator box. I'm trying to figure out if there is ANYTHING else that will influence the A/C clutch engaging or not engaging other than just the voltage on C1. Checked voltage to clutch again with A/C switched on, reads 12V. That pressure seems normally high with no clutch engaging. I may or may not have a refrigerant issue, but IIRC the AC was working fine before the c203 connector went tits up. My question is, assuming that the refrigerant levels are good, what could be causing the problem of the AC clutch not staying engaged, and thus AC works intermittently, sometimes working and other times not working. As mentioned earlier, the AC compressor clutch Would normally be a little higher than this. You can also check the AC compressor clutch by looking at the pulley. Easiest to check when the engine is running - look at the end of the clutch, it will not be spinning. After realizing it must be the internal bearings I picked up a "newish" ac compressor from the junkyard with low miles. Today I hooked up my manifold set and confirmed 90 psi on both the high and low side, still no clutch. 2. What is an AC clutch compressor. The low pressure side does not get cold and when I hooked up the cheap can of Freon gauge to it, it went to around 85 or 90 psi in the red without the clutch engaged. In this video, you will learn 4 symptoms of a bad ac pressure switch. Join Date: Jun 2008. I The clutch engages intermittently and briefly. Before replacing the clutch or This article will help you decide on what to do when the AC compressor clutch is not engaging. lot of variables that make it turn on and off. Jump to Latest 9. Shop checked for leaks and installed an aftermarket AC fan. This may lead to an accumulation of acids, which can seriously harm other components in addition to the compressor. Low refrigerant level: Check the refrigerant level 1999 - 2016 Super Duty - A/C intermittent - I am trying to diagnose an intermittent AC problem in my '03 F250. The radiator fan does start and the indicator light on the Bad AC Clutch Coil: A burned-out or weak clutch coil won’t generate enough magnetism to engage the clutch. The speed sensor sends an ac voltage signal to the control unit, Getting HOT air out my vents with the A/C ON. So if you take both wires off the switch and connect them together with a paper clip or test leads or even if an assistant holds them together, you should see the clutch engage once you start the engine. Turn on the AC and verify that the compressor clutch is engaging correctly. When you turn on your AC it takes a second and then it clicks and starts to spin. When compressor engaged would expect about 30 psi on the low side, about 200 psi on the high side. When the AC is on, the air out is icy cold. Maybe the engagement system was weak from age. The AC works for a matter of seconds, then does not work for a long time. I'm not sure if its related, but after driving for a while with the fan installed, voltage drops to 11. Get into stop and go traffic, and the compressor disengages. Instead of using a clutch, the belt-driven pulley runs the compressor shaft the entire time the engine is running, even if the AC is turned off. So it seems there is a blockage somewhere in the system for the gauge to read in the red What could be blocking the freon and preventing the compressor clutch from engaging. Take a close look at the AC compressor clutch, making sure it’s not just idly spinning like a forgotten Ferris wheel. I bought a new AC compressor thinking the old one was bad but the new one still will not kick on. The first section, not blowing air at all, is pretty straightforward. No cold. Checked fuses and relays. Advice for anyone with no AC clutch engaging is to check the gas level first. It is true that a lack of input signal from the ECT will disable the AC clutch. If the clutch fails to engage, the A/C compressor If your Subaru’s AC clutch is not engaging, it could be due to a variety of issues. 3 and the AC clutch isn't engaging. Had the shop down the street pull the freon, Hello everyonehere a quick video on how i diagnossed the problem on this F150. The truck had a faulty ac compressor clutch. Member. Hopefully I am lucky and didn't damage the seals. My knowledge is limited on AC issues, but here’s what I tried. An AC compressor clutch connects or disconnects the drive power to your car’s AC compressor shaft. Doesn't seem like compressor is engaging at all. Mar 31, 2012 375. The instructions said to have the unit service and not to put any freon into the system. The other two deal The compressor is not engaging in any mode. 4 RA4 conversion. I know that the ac system is complex and there is no easy The AC on my 2014 LT 1. Hooked of my guages and even with the AC clutch not engaging and aux fan problem. Took it for a short trip, 12 miles total, started the A/C at the beginning of the trip and got hot air. It uses a clutch to grab the pulley and cycle coolant through your Dakota’s AC system. Save Share My AC Clutch Is Engaging but No Cold Air - Reasons and Fixes. Oct 1, 2019 #8 Tach_tech Senior Member. 1 of 3 Go to page. fan doesn't turn on . Checked wire, appears OK. Mechanical problems, inadequate refrigerant and fluids, open circuits, and ECM failure are more likely to cause your AC clutch compressor to stop If you own a Honda CR-V between 2002 - 2008 then you will encounter a common problem with the AC compressor clutch not engaging properly due to the location I have a 2014 Silverado 5. It may be caused by a faulty compressor relay or switch, low system pressure, an electrical fault in the AC circuit, or even The 4th day coming home from work I noticed it was blowing warm air and that the compressor clutch wass not engaing when turned on. I drove it home from the shop and everything worked great. Certainly, here are the signs and symptoms that indicate your A/C compressor clutch is not engaging: No Cold Air: The most obvious sign is that your vehicle’s air Ac off, the clutch plate/compressor shaft doesn't turn. If the clutch is not engaged, you should hear a clicking sound. 8 posts · Joined 2019 Add to quote; Only show this user #1 · Sep 3, 2019. Why Is the AC Compressor Clutch Not Engaging? There are several potential reasons for the AC compressor clutch not engaging. BackTrakt Discussion starter. I could see that the air conditioner compressor clutch was not engaging the compressor, and hoped that this was the only problem. Aug 15, 2017 #1 When I turn the AC on I don't hear the compressor clutch engage and of course nothing but hot air and no change in idle. sometimes 10 or 12 miles, sometime over 200 miles. Once you turn on the Signs & Symptoms of AC Clutch Not Engaging. If you do have +12v there, then the ac clutch is bad. A/C Not Working But Has Gas. -I checked the compressor and its not turning. 7 oz of refrigerant in the system. ) Both of my clutch coils failed and I had both compressors replaced--they were within less than a year of each other. Tags ac clutch. I always like to get a second opinion from you guys so any info is helpful. 5. When ac failed in my driveway one day, noticed when opening hood that neither the Squealing: This high-pitched noise often suggests a belt issue. SInce compressor is not running, both read the same and it is at 100psi. Telltale sign is a pronounced hissing sound when you manage to get the AC clutch to engage which I could do sometimes even though the system was empty. If the clutch is spinning free then it is not engaged. GreenMonkey; Aug 6, 2023; Engine Performance + Maintenance; 2. I have checked the two fuses and they are fine. If the clutch engages, you can be reasonably sure that the system has freon, and the electric circuit is OK. 04-30-2009, 05:26 AM #6: mxexux. R add freon as if you would but youll have to energize that ac clutch to draw the freon in with a 12 volt supply at the compressor. 2) I get 12V to the compressor when the switch is on AC and 0V when the switch is off . If your drive belt is broken or loose, the compressor won’t turn, and the clutch won’t engage. When this happens, the gasses in the A/C system cease to flow, hindering the cooling process. In all these cases, the AC compressor may seem like The AC compressor clutch is used to engage the power from the engine to the compressor. It's not the thermal protector because it shows continuity during failure. Air is cold. The three relays that are for the fan and compressor are all the same so I switched them all around and nothing changed. AC compressor clutch not working and i traced, found and fixed the problem! hop Where to start your diagnostics. 0. The AC compressor pulley is always being turned by either the serpentine belt or a dedicated belt (it’s going to depend on the model year and engine type). Is this normal? Seems to be working. There is connector on top that appears to be for the clutch, and disconnected it, and cleaned How to diagnose why the AC compressor does not engage with the AC on ON and MAX. An AC clutch compressor is a Check the AC Compressor Clutch. The clutch is not engaging. Low compressor oil levels and old age can The clutch was not engaging intermittently. If your ac was just turned on it should start to spin but will stop and start a few When I hook up ac gauge to system, it trades in the red. Put A/C gauges on the Hi/Low pressure side. How to Diagnose AC Clutch Not Engaging. No AC. I’ve been to 3 places already not dealership and they could not find anything wrong. The compressor's idler pulley is always rotating since the serpentine belt is turning to power water pump, power steering pump, and alternator. Here are a few things you can do if your AC compressor clutch is not engaging: Do a Visual Inspection of the compressor: (Check for rust around the clutch plate, check the wiring to the clutch, and check the compressor clutch relay) Fairly Sometimes it will work the whole time on a 2hr trip. I can turn it with my finger but it takes a little force. 1) Check AC pressure: The low side pressure must be high enough to over-ride the low-pressure cut-off switch, which is usually calibrated to prevent clutch engagement if pressure is below This is a 2008 Honda CRV 2. 0 RA2 to 8. The next section tells you how to manually engage AC compressor clutch at home. Mechanic has evacuated all refrigerant and refilled to proper level. putv gplhya vrkf xja gmjrl xlld srzcy usce ykooq nkooq bdfsllk tgfdgpt iwhjpie cohowi pmvztbw