Stalling at Stop Light
#1
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Cruising my way crosstown today with my a/c running. Tempeture was about 95 degrees. I came to a stop, the light had just turn red so I put the car in neutral to wait out the light. The cars temp gauge was reading normal. About a minute after I stopped the car stalled. I tried to restart it and it would die immediately. I turned off the A/C switch an it started & ran normal. After a minute or so I put the A/C back on with no further problems. This has happened several times only on hot day when the A/C is running.
On other occasion a simular stalling has occurs when I come to a fast stop, also with the A/C on.
Dave
Las Vegas, Nevada
_________________________
87 Carrera / Blk & Grey (sold)
89 928 GT/ Black & Tam
03 Mini Cooper / Blk & Red
On other occasion a simular stalling has occurs when I come to a fast stop, also with the A/C on.
Dave
Las Vegas, Nevada
_________________________
87 Carrera / Blk & Grey (sold)
89 928 GT/ Black & Tam
03 Mini Cooper / Blk & Red
#2
Rennlist Member
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Sticky auxiliary air valve? Intermittent connection to the air valve solenoid? Come to think of it, I think S4+ cars used the IAC valve for that. Maybe yours is sticking?
#3
Rennlist Member
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Could be first signs of LH failure. The idle stablisier circuits are on the imfamous "tile". The LH should automatically adjust the idle valve setting when aircon is on.
But it may be that there is a slight vac leak, MAf near end of life, air these factors can reduce the effective range of the idle system. When it runs out of range engine may stall.
The idle valve circuits in the LH are also engine temp compensated, so this may be the reason why it has a problem when engine and air temps are high. Just takes more tolerance out of the system.
But it may be that there is a slight vac leak, MAf near end of life, air these factors can reduce the effective range of the idle system. When it runs out of range engine may stall.
The idle valve circuits in the LH are also engine temp compensated, so this may be the reason why it has a problem when engine and air temps are high. Just takes more tolerance out of the system.