bulldog133
New member
I have been stumped by an intermittent stall that only happened when I turned to the left along with a rough idle and slight miss for over a year now. At first the stall was my only clue. And it did not always set the engine code. but occasionally the code 42 was set. I did notice that as my truck stalled the tach would flutter.
I started by removing the alarm and car starter that was installed from the previous owner, it was a birds nest of wires so I figured my problem had to be in that conglomeration of shit, no luck
I examining the est circuit wires as best I could and did not see any obvious bare spots or damaged insulation so i moved on to the ignition.
I replaced the entire dist, ignition module, coil, wires, plugs, ignition switch, IAC, inspected steering column for loose connections, checked grounds, tested TPS sensor. I went thru 3 sets of wires two dist, and a few modules, Still no luck
In the past few weeks my symptoms started getting worse now the slight miss at idle and low speed was more pronounced and cause a vibration from the engine. engine was running rich, and I could get the tach to flicker and drop to zero if I swerved left.
This problem has got the best of me for a while so today I decided to replace all est circuit wires; White, Purple/Black, Tan/Black, and Black/Red with four new wires. From the ecu to the dist.
Initially the engine fired up and then stalled within a few seconds so I was a little worried. but it fired right back up and this time cleared itself out after a few seconds. HOLLY SHIT I THINK I FIXED IT. it began Idling as smooth as it has since i've owned it. I took it for a ride and and it was smooth at last. could not get it to stall or show any sign of a tach flutter. I have only driven it for a short test drive so I will post back after a couple weeks with an update.
So it looks like one or more of the wires in the est circuit had and intermittent short in it. Only showing its ugly head when I turned to the left which must have caused it to rub on the firewall somewhere.
I hope this will help anyone with these symptoms. My perseverance finally paid off. And I am pumped that I fixed it but now I'm just kicking my self in the ass for not rewiring it from the start. Whatever I CAN TURN LEFT AGAIN!!!
I started by removing the alarm and car starter that was installed from the previous owner, it was a birds nest of wires so I figured my problem had to be in that conglomeration of shit, no luck
I examining the est circuit wires as best I could and did not see any obvious bare spots or damaged insulation so i moved on to the ignition.
I replaced the entire dist, ignition module, coil, wires, plugs, ignition switch, IAC, inspected steering column for loose connections, checked grounds, tested TPS sensor. I went thru 3 sets of wires two dist, and a few modules, Still no luck
In the past few weeks my symptoms started getting worse now the slight miss at idle and low speed was more pronounced and cause a vibration from the engine. engine was running rich, and I could get the tach to flicker and drop to zero if I swerved left.
This problem has got the best of me for a while so today I decided to replace all est circuit wires; White, Purple/Black, Tan/Black, and Black/Red with four new wires. From the ecu to the dist.
Initially the engine fired up and then stalled within a few seconds so I was a little worried. but it fired right back up and this time cleared itself out after a few seconds. HOLLY SHIT I THINK I FIXED IT. it began Idling as smooth as it has since i've owned it. I took it for a ride and and it was smooth at last. could not get it to stall or show any sign of a tach flutter. I have only driven it for a short test drive so I will post back after a couple weeks with an update.
So it looks like one or more of the wires in the est circuit had and intermittent short in it. Only showing its ugly head when I turned to the left which must have caused it to rub on the firewall somewhere.
I hope this will help anyone with these symptoms. My perseverance finally paid off. And I am pumped that I fixed it but now I'm just kicking my self in the ass for not rewiring it from the start. Whatever I CAN TURN LEFT AGAIN!!!
