Heat came on when I took truck out for drive. One of the lines at firewall is supposed to be cold enough to sweat. My line is just cool. I never use ac so was not watching it much. No one else ever reported this no heat/cold so should have been suspicious.
Heater and ac not working but lots of fan air. Fan working and not clogged. There was a mouse in truck for about a day and it did start a nest somewhere in ac ducts past the evaporator. Can a bad blending door create these symptoms. Compressor comes on and hoses going to heater core are hot...
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 09-01-00, DATED
FEB. 18, 2000, WHICH SHOULD BE REMOVED FROM YOUR FILES. THIS IS A
COMPLETE REVISION AND NO ASTERISKS HAVE BEEN USED TO HIGHLIGHT
REVISIONS.
SUBJECT:
Foamy Oil Emulsion Accumulation Inside The 4.7L Engine Oil Fill Housing...
Solved: you have to hook up multimeter continuously for at least a minute for 1 amp to disappear. Real reading is 5 milliamps. Test light just stays on and blinks with a red light in cluster.
Tons of people replace their cluster when they see the 1 amp. Very few mentions of how the test must be...
I cleared 27 and 29 and they did not reoccur but amp reading is almost exactly 1.0 at fuse 51 . Reading is very stable. Not sure if bad battery could cause this. Left truck off for several hours and still get amps at fuse 51.
The computer seems to think car not shut off.
The horn problem seems to be common. 1 amp is read at fuse 51 and battery drains in couple days. The horn switch or relay in pad goes bad. 1 amp at fuse 51 may be my nirmal for a period after truck us shut down,though. Multimeter must be left on continuously for at least minute or you will...
I did the cluster test and got the following codes:
27 55
29 55
Ab 06
AC 23
00 00
27 is dome light output open or shorted
29 is cargo light output open or shorted
Both lights work. I don't want to turn key 100 times to reset.ie 45 more times.
Have not touched these lights.
I do have a 1 amp...
I want to bypass until I have time to
Replace compressor pulley bearing.
I'm in Canada and can't get new pulley
At reasonable price. Rockauto charges $400. Amazon.com sells one cheap but not available to Canadians. I got the bearing on amazon.com for $20.
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