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90 2.3 rough idle dies when throttle applied


EricNobody

Well-Known Member
Joined
Nov 6, 2013
Messages
110
City
Seattle, WA
Vehicle Year
1990
Transmission
Manual
So, she was doing. Great, replaced the iac, rough idle gone, still throws codes, I'll check when its dry what they are.



Yesterday gave some hesitation under throttle from slow speed/stop in first and second.



Today, started fine, while warming up, idle got super. Roug, had the truck rocking left to right a bit. Applied throttle, bogs and almost dies, returns to bad idle.



I read about wire shorts on other trucks with similar symptoms, I'm looking for other things to check, so when I get dryish weather, I can do more then just check the wires. Was running perfect before this. Father thinks its fuel delivery, and I'm with him.replaced the filter a while back.



Fuel gauge is inaccurate, so the sending unit needs to be check, and the connections as well.



Anyone suggest any other places to inspect, or common failures?





Sent from my RM-917_nam_usa_100 using Tapatalk
 
If you have an EGR system the EGR valve could be stuck open a bit.
 

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