The slight surge at idle could be the quantity fuel valve or the high pressure fuel pump. When you have the fuel filters changed check for metal...
Solenoid on the fire wall
No hard starts just an idle with surge up and down. Get rpms up to around 10 and it goes away. It smooths out a lot after warming up but still has...
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I replaced fuel quantity valve and it helped but still has a surging idle especially at startup. Seems to smooth out after running a bit but is...
So not for sure if it was the fuel valve or fuel pump??
What exactly was your truck doing. I could start mine and have a really rough surge. Replaced quantity fuel valve and it helped but still had a...
I’m thinking that fuel pump may need replaced??
Replaced the quantity fuel valve and it helped but still have a rough idle upon first start up if the day. Seems to smooth out after running for a...