Just to be clear, the catalytic converter is different than the mufflers so if your truck has one, they need to check it to make sure it's not...
If your truck has a catalytic converter I would suspect that is clogged. I have a 2006 Peterbilt with an MXS ACERT that had low boost and high...
Thanks black_dog. I'll check those out.
Does anyone have an opinion as to what the brightest 4" diameter round, white, LED load lights are for the back of the cab to light up the front...
Pushbroom: Please let me know who I can contact to get the build sheet info for a 1979 Peterbilt. Thank you.
NightWind: What year is your truck and do you remember the name of the person in Denton that you talked to about getting the build sheet?
The first thing I would check is to make sure it's got good clean positive and negative connections to the batteries. If it does, I suggest...
Does anyone know if you add a 9-gauge OEM gauge panel (Oil Temp, Turbo PSI, Fuel Filter Restriction, Air Filter Restriction, Pyrometer, Front...
I'm looking for a used, drum-to-drum, Spicer E1462i 14,600 lb. steer axle assembly for a Peterbilt 387. If anyone knows of one for sale, please...
If anyone has or knows of someone that has an Ametek/Actia gauge programmer for a 387 that they'd like to sell, please let me know. It's also...
It sounds like maybe you're not looking for a Cummins shop but there's a Cummins-Atlantic shop in Greensboro about 30 miles west of Mebane, NC at...
On my 2006 387 the recirculation actuator is on the top right of the HVAC box and that one is readily accessible. The blend door (temperature...
I'm not sure what year they changed, but I'm pretty sure it was around 2007 or so that the "Trailer Load Center" electrical box on the frame rail...
I have a 2006 387 but I'm guessing yours is the same. On the 387 the dash gauges are interconnected ("daisychained") with 5-conductor data cables...
We had a similar problem with our 2006, 387 with an Ultrashift automatic transmission. In that case we had a broken brake signal wire under the...
vijay you have a PM
I was wondering if there were ever any 387 or 587 day cab or sleeper cab tractors built with 15K-16K lb. steer axles? If so, what manufacturer...
If all you're changing is the rear axle ratio and everything else is the same, you can figure out the new road speed by applying the percent...
BAD: On my 2006 387, I think the gauge interface module is under the dash against the interior firewall somewhere behind the radio and I'm...
I have a 2006 Peterbilt 387. All of the dash switches have lights in them that go on with the clearance lights but the power window and door lock...
