Jump to content

Truck Running Poorly


grose67

Recommended Posts

Posted

Neighbor has an 03 HD with Vortec 6.0. It threw 5 codes all relating to MAF. I cleaned the MAF last night and sprayed some cleaner through the plenum. Truck runs 100% better until the heater switch is turned to high. The truck bogs down and runs like crap. No new codes are being thrown .

Posted
Neighbor has an 03 HD with Vortec 6.0. It threw 5 codes all relating to MAF. I cleaned the MAF last night and sprayed some cleaner through the plenum. Truck runs 100% better until the heater switch is turned to high. The truck bogs down and runs like crap. No new codes are being thrown .

Sounds like a bad battery maybe...does it bog down when you turn on the headlights too?? or use other high amperage accessories?

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined
  • Who's Online   4 Members, 0 Anonymous, 488 Guests (See full list)

×
×
  • Create New...