Idle surging won't stay running
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Engine idle is surging up and down and won't stay running very long. Replaced IAC, fuel pump assembly, cap &rotor, plugs,and wires. Not giving any codes. Smell fumes, not gas but fumes( light fumes not over powering). As soon as I step on peddle, stalls out. Sometimes starts right up , sometimes cranks awhile. At end of my rope. Can anyone offer their input. 1999 Dodge Ram van 3500 5.9 liter gas engine
Last edited by Glennjames; 08-20-2016 at 08:36 PM.
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My 95' 3.9 started having power steering problems. Turning would work half way normal and then tense up. It has also began running with a hickup as I coast down the highway. A few backfires have occurred as well.
I have replaced the computer, replaced and checked wires/plugs/cap connections, checked vacuum lines, used diff fuel, cleaned air filter. The valves sound normal.
I am thinking that my brake booster is failing. HOW DO I MEASURE the vacuum pressure???
I have replaced the computer, replaced and checked wires/plugs/cap connections, checked vacuum lines, used diff fuel, cleaned air filter. The valves sound normal.
I am thinking that my brake booster is failing. HOW DO I MEASURE the vacuum pressure???