98 odyssey a/c help
03-17-2010, 08:44 PM
#1
Honda-Tech Member
Thread Starter
98 odyssey a/c help
so im alittle lost and fraustrated on my a/c . all my fuses are ok and i just replaced the a/c clutch relay from honda. when the compressor isnt on the pressure is at 45psi, when it is on it shows 25psi. now i have to jump it to have my compressor to turn on, so could it be a bad ecu or just really low on freon? oh and the pressure switch is fine and the compressor doesnt make any funny noises when jumped.
Last edited by evil_ryu; 03-17-2010 at 09:21 PM.
03-18-2010, 07:06 PM
#4
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
freon is fine took it to a shop today after work and the only thing it could be is something electrical. i told him my situation that i can jump the clutch relay plug and the compressor turns on. he asked when im using a test light do u get 2 cords that power up with a test light, i was like no only 1. he then tells me i need 2 wires that power up from the clutch relay plug, since i only have 1. so i found out what fuse it was and now i get 2 that light up but the compressor still doesnt turn on and my now fan doesnt turn on ever since i replace the fuse. im lost and fraustrated i dont have the time or money to leave it to a shop to fix
03-22-2010, 09:05 AM
#6
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
what are the chances if i leave compressor jumped and just use it every now and then? im really lost on what is wrong with my a/c system?
things ive done already and checked or replace was put new fuses for the condenser fans, replaced the 2 relays by the radiator, regrounded the ground wires, checked presure switch it was ok. could it be something under the dash board?
things ive done already and checked or replace was put new fuses for the condenser fans, replaced the 2 relays by the radiator, regrounded the ground wires, checked presure switch it was ok. could it be something under the dash board?
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03-24-2010, 06:58 AM
#8
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
all theses views but no help?? really need this to work as my wife is nearing her due date and not having a/c working in cali specially spring is here, sucks...
04-05-2010, 09:41 PM
#12
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
it did but when i replaced the fuse in the enginebay they stopped working? the radiator fan kicks on when it heats up but other than that when i turn the a/c on the fan doesnt kick on? ive check most of the grounds by the front bumper that leads to the fans and looks good?
04-06-2010, 05:54 PM
#13
In a Junkyard near you.
Re: 98 odyssey a/c help
The heater fan? If no replace the blower fan transistor and both should start working again. About $80 from the dealer. The a/c compressor will not come on of the transistor doesn't sense the blower fan is running.
04-07-2010, 11:31 AM
#14
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Thread Starter
Re: 98 odyssey a/c help
the stupid chilton book i ordered is no help. when it comes to a/c related the book is telling me to take it to a professional.. i was like WTFFFFFFFFFFF!!!!!!!! 
04-15-2010, 08:05 AM
#16
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Re: 98 odyssey a/c help
have u jumped the pressure switch ,,( the one under the battery ??) did the compressor tun on,
if yes you have a freon problem
if no then its electrical ,
if all fuse are good and relay good along with the switch indash , then your problem is in the ecu .
ac circut goes to the ecu so it can cut it off under load for fuel economy, you could just cut it out and bypass the ecu , it just wont shut off at w o t ...
also i read your pressures listed on the first post 45psi off and 25 on ,, thats way to low to operate any thing under 30 will turn off the compressor when it is running ..
dont just run a wire to the clutch on the compressor it will just ice over the evaporator and will do nothing but give u a block of ice
if yes you have a freon problem
if no then its electrical ,
if all fuse are good and relay good along with the switch indash , then your problem is in the ecu .
ac circut goes to the ecu so it can cut it off under load for fuel economy, you could just cut it out and bypass the ecu , it just wont shut off at w o t ...
also i read your pressures listed on the first post 45psi off and 25 on ,, thats way to low to operate any thing under 30 will turn off the compressor when it is running ..
dont just run a wire to the clutch on the compressor it will just ice over the evaporator and will do nothing but give u a block of ice
04-15-2010, 08:38 AM
#17
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
have u jumped the pressure switch ,,( the one under the battery ??) did the compressor tun on,
if yes you have a freon problem
if no then its electrical ,
if all fuse are good and relay good along with the switch indash , then your problem is in the ecu .
ac circut goes to the ecu so it can cut it off under load for fuel economy, you could just cut it out and bypass the ecu , it just wont shut off at w o t ...
also i read your pressures listed on the first post 45psi off and 25 on ,, thats way to low to operate any thing under 30 will turn off the compressor when it is running ..
dont just run a wire to the clutch on the compressor it will just ice over the evaporator and will do nothing but give u a block of ice
if yes you have a freon problem
if no then its electrical ,
if all fuse are good and relay good along with the switch indash , then your problem is in the ecu .
ac circut goes to the ecu so it can cut it off under load for fuel economy, you could just cut it out and bypass the ecu , it just wont shut off at w o t ...
also i read your pressures listed on the first post 45psi off and 25 on ,, thats way to low to operate any thing under 30 will turn off the compressor when it is running ..
dont just run a wire to the clutch on the compressor it will just ice over the evaporator and will do nothing but give u a block of ice
yes all fuses replaced and my climate controll seems to be ok minus the slider but i can move it from hot - cold.
whats funny is that when i took it to the shop the guy told me that theres enough pressure in my system and told me i have something electrical? so should i add more freon then since when its jump its at 25psi? when i added freon i used the cans from the store.
04-16-2010, 06:01 AM
#18
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
well took a look at the car alittle yesterday, for some reason when i jump the compressor now and give it a throttle alittle the engine dies out? any ideas? and now its showing alittle over 25psi but the compressor still doesnt kick when i put back the relay?
04-19-2010, 08:28 AM
#19
Honda-Tech Member
Re: 98 odyssey a/c help
do the fans come on when you turn on the a/c from inside all connections are normal (not bypassed)..if they do then you know you have signal. most likely a relay...where in the 805 do you live..I work at T.O.
04-19-2010, 06:33 PM
#20
Honda-Tech Member
Thread Starter
Re: 98 odyssey a/c help
everything inside works fine and i did replace both relays by the radiator. i need me a helms or haynes book this chilton book sucks...oh and im in simi valley
