1HD-FT AC — no idle-up after compressor replacement

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Feb 14, 2026
Threads
2
Messages
2
Location
UK
80 series, 1HD-FT, RHD.


Compressor seized solid. Internal failure, not the clutch — debris through the system. Full replacement done: compressor, condenser, expansion valve, drier, flush, oil to spec, new o-rings.
Cooling correct, vacuum held.
One problem. Idle drops when the compressor engages. No idle-up at all.

Assuming the idle-up actuator line at the injection pump wasn't reconnected. Anyone confirm the routing on the 1HD-FT — which line feeds it and where it terminates at the pump?

IMG_9662.webp
 
Back
Top Bottom