Question about 2008 Honda Accord 2.0i-VTEC

2 Answers

2008 honda accord air will not work ,has freon ,relay works but compressor will not kick on.

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2 Answers

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  • Contributor
  • 5 Answers

Did you check the cutoff switch to make sure it works properly?

Posted on Nov 08, 2013

  • 7 more comments 
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    _-__-___-_ Nov 08, 2013

    do you need a schematic ? its online. on modern cars, there are up to 6 permissives, if any fail , the clutch is shut down. we find this with the schematic and any volt meter, got one?

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    climate control, navagation optons, there are 3 systems.

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    i spin dice land on , manual controls (lazy)

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    a/c pessure switch kills it with below 28psi or over 455psi. switch opens on failure. check that first

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    if the compressor relay is energized (is it) you said works, but works (sound means zilch) means, it has 12v on pins 1 and 2? pin 2(*blue-red) is 12v out, if this is dead, the relay is bad or the ECU detects errors and is CUTTING AC. overheat, is #1 reason.

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    there are other reasons, this AC , the ECU detects faults and cuts AC, (overheated engine or at 100 power (passing) and other reasons.

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    also blower feed back if its false, the AC is cut. pin 19 HVAC control unit.

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    one more cut permissive, the evap core , ICED up sensor, cuts AC too. so.... use the FSM to diagnos this, we , but cant help really until you answer the options questions,

  • _-__-___-_
    _-__-___-_ Nov 08, 2013

    short, is the *blue-red) hot or cold, 12v or 0v. that is the first test and we use a voltemter (AC and engine running)

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  • Honda Master
  • 20,706 Answers

#1 top A/C post here ever. bravo that.
this is caused by by the AC brain.
(location varies by year, and country)
A/C brain discrete, cira 90s
to after 2007 , they moved the brain, now pure software inside
the ECU or BCM , on most cars.
it really dont matter much where it is until you get to back probe the bugger. right?
so , here is the reasons for A/C clutch dead.

1:clutch bad, apply 12v to it see if it works (wires discon, please)
do so for on 1second, so as not damage system.
check for coil ohms near 1ohm. at clutch.
infinity is bad coil.
OR do :
1b" 12v to coil AC on? any volt meter works. 11 to 15v typical.
13.3 to 14.7 running engine typical.
yes, clutch dead.
2: 12v not at coil of clutch bad relay.
3: relay coil not energized.
3a: power to relay not on coil, if yes, bad relay .
3b: relay coil dead. no power. the brain has it shut down!

4: the brain, stops the AC for all these reasons
simple answer , inputs wrong.
full answer:
a: too low freon pressure, in truth or sensor fibbing
b: too high freon pressure, same, reasons.
c: ENGINE over load, (pulling trailer or going WOT )
d: engine overheat. (ecu say so or AC has its own sensor saying so, RTM.
e: Evap core (the cold core in dash) has frozen over to a ice brick. (a freeze sensor is there) caused by stuck open expansion valve. in core.
f: no power to AC brain, 90s cars. or missing ground,
g: AC not on, or brain can not see fan going, usual the is just
the 12vdc to fan missing. or the wire fell off.

some cars have all this, my 96 does.
on newer cars the ECU can shut the AC down for many reasons.
most are related to safety to the driver, or Compressor.
for what reasons, only the FSM answers that , and varies
by year, engine type, model and country sold.
if in usa , you didnt say. then alldata dot com has these facts
and more , under section called HVAC.

The brain will not allow you to burn up the compressor or worse.
it tries very hard at that. even as old as 1991 cars. (some)
today all.

Posted on Oct 12, 2013

  • _-__-___-_
    _-__-___-_ Nov 07, 2013

    ever sort this?

  • _-__-___-_
    _-__-___-_ Nov 07, 2013

    99.9% never post back, its fixya, others, if you see this, we can find the real problem fast, with just a $10 voltmeter. and 5min work.

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SOURCE: 2003 honda accord air conditioning

replace the black relay between the 2 blue relays in the fuse box. cost about 5 bucks.

Posted on Sep 25, 2008

scottech
  • 50 Answers

SOURCE: 2003 accord air conditioner

Hi there. When a compressor is replaced, two things are in fact being replaced - both the compressor and the refrigerant (Freon) and if the problem is resolved as a result which of those two replaced elements caused the original problem? Well you will never know and so before the compressor is replaced you need to have you’re A/C system recharged – it’s by far the most cost effective initial thing to do. In general A/C systems loose at least 10% of their effectiveness each year through loss of refrigerant and so given the age of your car; it’s the first thing to focus on. A professional A/C centre will also be able to tell you whether your compressor is working properly after having a refrigerant recharge by the monitoring the operating pressures in the A/C system.

Posted on Jun 19, 2009

  • 1341 Answers

SOURCE: 2003 Handa Accord EX - AC not blowing air at all

if it is not blowing at all then it has nothing to do with the a/c.It's to do with the blower fan, either a fuse or a replacement is needed here.

Posted on Jul 26, 2009

  • 105 Answers

SOURCE: 2008 honda accord replace rear brakes

no, 12mm wrench or ratchet on 12mm socket. the piston is tough to push back in. its a twist in type and you will need some force to push and twist the piston back in. - note rear brake pads wearing out on the new 08-09 accords are very common and if under 16-18 thousand miles it may be covered. honda knows about this problem

Posted on Oct 27, 2009

roniecon
  • 6927 Answers

SOURCE: WHAT TYPE OF FREON DO I FILL MY AIR CONDITIONING

Use 134a freon,be sure to add oil also,if the freon was lost,so was some oil,use a 4 oz can of pag 46 oil charge.

Posted on Apr 16, 2010

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1 Answer

Kia rio 2002 air conditioning problems, Hi, currently my air conditioning just doesn't start at all, it was working properly and suddenly witout a warning it' just stopped working. It does not work...


If the AC compressor is kicking in and out then you are probably low on freon. If the Compressor isn't kicking in at all then the problem could be a fuse or relay in the Power distribution box or the fuse in the interior of the car. If the fuse and relays are good then the problem could be a bad clutch on the compressor or a bad compressor itself. If the compressor is kicking in and out then get a freon refill can from Walmart or an Auto parts store and add freon to the system until the compressor kicks in continuously.

Sep 28, 2011 | 2002 Kia Rio

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Honda Accord 2003 4dr LX - AC does not cool always. The compressor does not kick in every time. When it comes on, it is very cold But otherwise there is no click sound. I got it checked by the mechanic...


Most likely a restriction in the lines causing the compressor to shut down after a breif period of cold air. Check for bad orifice tube or thermal expantion valve.

Mar 23, 2011 | 2003 Honda Accord

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The ac is blowing out only hot air


  1. Have your A/C's Freon pressure tested. If it is low, have it charged with new freon.
  2. If your Freon is at the correct level, your Compressor or Compressor Clutch may have gone bad.
  3. When you turn your A/C on, can you tell if the compressor kicks on? Usually you will feel a slight shudder from the engine, or you will hear the RPM's slightly raise and then level out. The temperature blend door may be stuck (if a/c compressor kicks-in)

Feb 21, 2011 | 2001 Honda Accord

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I have a 1992 honda accord we have repalced comperssor both engine fans and added new freon with oil ....but the compressor does not kick in until 20 min later? baffled


prior to adding the freon did you have system evacuated with a vacuum pump???? If not there is air in your system causing the delay reaction for compressor to kick in

Jun 12, 2010 | 1992 Honda Accord

1 Answer

My air condition is not working


first check your fuses and any relays sometimes you have multible relays that are the same in a fuse box that you can switch around but i would bet you have a leak either in your compressor or in your line if the clutch is not kicking on and off or running all the time when you turn it on thats because your freon has leaked out the system is sealed freon does not go bad if there is no pressure in the system it will just blow warm air your question is vague so if your blower is not blowing bad blower motor or a fuse if warm not getting cold your system has a leak if you have not broke the system you can try stop leak 2 cans to seal a leaky compressor compressor could be bad if it wont spin noisy clutch could be bad need new compressor but if a leak after stop leak add the right amount or r-134a 2 to 3 cans if the compressor kicks on on the first can of stop leak or freon your system did leak down and you hope the stop leak fixes it but first check all your lines are tight and that the freon is not leaking from the high or low pressure ports the valve can leak sometimes make sure your caps are on take some spit after you add freon back into your system see if your spit blows a bubble if it does replace or tighten the valve. a few things to check start with power fuses then add a can of freon if you have power now clutch engagement if you add and kicks on there is the reason a leaky system it will all leak back out in a day or several days... thats why you can add the stop leak things you can try or take it to the shop and pay someone some $$$$$

May 26, 2010 | 2003 Honda Accord

2 Answers

No cold air. compressor works for seconds and shuts off


Replace the compressor, if it quits running after a few seconds, it is more than likely your compressor causing the problems

May 29, 2009 | 1992 Honda Accord

2 Answers

96 Honda Accord LX 4 cyl - ac goes on/off every 15 seconds


when the compressor cycles fast that usually means that its low on freon.use approved gauges to get good pressure readings.

May 05, 2009 | 2004 Honda Accord

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98 accord ac not blowing at all


This is very vague. Is the blower motor working (can you hear blowing inside?), is it blowing but it's hot? Can you hear the compressor running (open your hood and listen if something is kicking on and off). AC is so complex. It could be as simple as a freon leak or as complex as a compressor, hose, accumulator etc.

Mar 13, 2009 | 1998 Honda Accord

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