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94 f250 stalling

Discussion in 'Ford Trucks' started by catpaver825, Oct 3, 2010.

  1. catpaver825

    catpaver825 Junior Member
    Messages: 16

    I have a 94 ford f250 5.8 the idle kicks up and down and stalls when at a light. Only seems to do it once its warmed up any suggestions of what could be wrong?
  2. ajman21

    ajman21 Senior Member
    Messages: 157

    egr valve or exaust gas recirculation valve. sounds like its stuck open or closed.
  3. mrv8outboard

    mrv8outboard Senior Member
    Messages: 197

    Listen this is going to sound funny but check the transmission fluid. I had a 1994 Bronco 5.8 and it only stalled at traffic lights and stop signs. Checked it out, tuned it up, Seafomed and still did it. I check the transmission fluid, it was low, topped it off and bingo no problem.
  4. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    Could be the idle air control too. It feeds are past the throttle plate when at idle. It may not react quick enough or be too weak. May not be that easy either. It will never throw a code and make it easy. You have temp sensors, MAP, fuel pump & fuel pressure regulator, EGR control and sensors, if that year still has a distributor the module may have problems.... Could be a bad connection too. Try to test stuff and not just replace stuff. It just makes your day worse to spend money and not fix it. Start by cleaning ground wire connections and putting dielectric grease on them to protect them. Bad grounds cause problems that will drive you nuts! Carefully pull apart connections on stuff on the engine. Look for crud and corrosion. Put dielectric grease in the connection plugs. Look for spark plug wires rubbing on metal. Could be shorting out here and there. Make sure all your filters are OK. When was the PCV, fuel or air filter changed?