Compression Ignition Addict
Join Date: Apr 2006
Location: So. Idaho
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Speedo, ABS, and AT Problems
After 7 years of trouble-free performance, I finally had some problems while towing over the weekend. not sure if they are all related or not.
1) the yellow "ABS" light is lit on the dash full time
2) the "OD" light on the AT gear selector flashes intermittently. seems to flash primarily under acceleration and at slow speeds. trans temps are staying around 150. occasionally up to 180. trans seems to shift fine. no slipping as far as I can tell.
3) the speedometer only works at speeds above about 38mph. any slower and it reads zero. as soon as you hit about 38, the speedo needle gets a spark and bounces up to what I figure is the actual speed. seems to work as usual from 38mph on up.
The truck now has about 57k miles. I have not pulled any codes yet. I was hoping to learn more from you experts before I take it to a shop and have the computer scanned.
I would greatly appreciate any input.
2002 F-250 7.3PSD, Lariat, 4x4, CC, SB, AT
-ISSPRO Guages (pyro, trans, boost) on pillar
-TW 6 Pos Chip
-DIY Cooling System Filter
-Custom Built Transmission and 3-disc TC
-ATS Ported Turbo Housing
-Donaldson DIY Intake
-6.0L Transmission Cooler
-Zoodad intake mod
-Pro Comp 2" leveling kit
-Pro Comp Crash Bar
-Firestone Air bags
-full syn blinker fluid