- Thread starter
- #61
Where is the THermister located on a 60? apparently the pressure switch in in the box behind the AC amp? if I replace the pressure switch is refrigerant evacuated?
AC idle up issue (1 Viewer)
- Thread starter LandoNick
- Start date
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Not sure. If you can bear with me for a day I am going to have a go at fixing my a/c idle up gremlins . This thread has peaked my curiosity.
It's about 10 degrees C here . Hopefully my a/c will engage for testing purposes.
Are you sure your a/c is not low on freon? Does it blow cold?
- Thread starter
- #64
Yeah blows very Cold!
Ok. It seems we have similar problems. I'll give it a shot at fixing mine and report back.
- Thread starter
- #66
Great thanks! I will keep trying things and see if I have a break through
Don't forget to try adjusting the knobs on the amp, you never know.
Might pay to mark knobs with a marker so you can keep the settings if it doesn't make any difference.
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- Thread starter
- #69
I did the sequence in the above post and no change at all
I think the thermister is inside the evaporator box. The FSM shows you have to disconnect the freon tubing to open it...so you don't want to do that if you don't have to.
regarding your loose connector, please see the attached schematic. The compressor clutch has a single wire connector associated with it.
But I also notice that someone did a splice...was that you or the previous owner. If the PO, who knows what he may have done. If that is not your splice, I would recommend confirming the wiring is correct.
regarding your loose connector, please see the attached schematic. The compressor clutch has a single wire connector associated with it.
But I also notice that someone did a splice...was that you or the previous owner. If the PO, who knows what he may have done. If that is not your splice, I would recommend confirming the wiring is correct.
- Thread starter
- #71
Oh man didn’t notice
. It’s was not me.I don’t see where that would plug in.
Should I just wire the VSV to the clutch?
Not just yet. wait a bit and I might have some success with mine.
I think the amp sends the signal to the vsv a second before the clutch engages to prevent stalling, [or that's my assumption]
@ landonick, did this just start happening or has it always done this?
If the latter, it might have something to do with the splice in the wiring from the PO.
If the latter, it might have something to do with the splice in the wiring from the PO.
That splice looks like it's on the White w/ blue stripe wire which is usually a ground and almost all these systems on these years Toyota are controlled by ground interrupt switching.
- Thread starter
- #75
I don’t remember it not doing it
. I never notice the idle dropping off because I would just drive I guess. And I thought the idle was low I would pull the choke out a little to get the rpms back up. Probably not the best
- Thread starter
- #76
I really don’t want to add to that mess. Replace that splice?
Check for continuity with ground on that wire, but check the wiring diagram 2mbb posted to make sure that's what that wire does. A lot of weird problems on these trucks are caused by bad grounds after 35 years of corrosion.
I would examine that splice at the least
I would examine that splice at the least
One thing you can try is replacing the little electrolytic capacitor on the amp. The one with 60 stamped on the top.
These are often the first things to go and can cause things to behave erratically.
These are often the first things to go and can cause things to behave erratically.
- Thread starter
- #79
Sounds good
- Thread starter
- #80
White and blue strip and green and yellow are spliced together? Ohms reading on White and blue was 1.89. And on green and yellow 2.10? From what I gather from the schematic is the white and blue are the ground for the thermistor and the green and yellow to the pressure switch.
a lot of info that I don’t know what to do with
a lot of info that I don’t know what to do with
