My daughter has a 1999 Ford ranger 4.0 V6 XLT and it has been have trouble starts and runs still a rough idle now but when put in gear it stall and surges also stalls and surges at stop signs and light sometimes dies unless you keep the rpm’s up at 1000 here are the codes
Po171
Po 174
P1131...
I’m kind of having the same issue my stalls and surges at stop signs and stop lights and idles ruff
Changed
Plugs and wires
PCV valve
Idle control valve
Fuel filter
Air filter
Cleaned MAS
Cleaned intake air temp sensor
Pulled codes
Po171
Po174
Po136
P1131
P1151
I’d appreciate any help
My daughter has a 1999 Ford ranger 4.0 V6 XLT and it has been have trouble I have cleaned the Mas sensor changed the IDler control valve changed the air temp sensor changed the fuel filter and have an egr valve to put on this week end the issue is it starts and runs fine now but when put in gear...