Intermittently Dies
I'm a couple days into a 4200 mile trip and my 1991 Tioga Arrow motorhome (Ford E350-based with 7.5L 460i engine) is giving me some problems. I'll be driving along and it will start to lack power but...
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Last may I had an overheat problem. Put a new radiator in it. Was doing a check of the installation - did about a 40 minute drive at interstate speeds with the AC on max.
Ran fine till I pulled off the interstate, then popped and backfired and sputtered and died. Attempts to start resulted in strong cranking but sounds of sputtering as if it was out of gas. I have a relatively new fuel pump.
I checked my battery connections (I had removed the battery during radiator replacement) and discovered the negative terminal was loose. I tightened it but when I tried starting still was getting some sputtering.
While I was waiting for a tow, it fired up and ran fine.
Either I threw something for a loop by having a loose/disconnected negative battery terminal, or I may have had a thermal problem with some electronic thing. I got no CEL codes thrown.
Culprits I have been directed to are the ICM, the EEC, or the PIP. The ICM and EEC are said not to be primary culprits for heat as they are mounted on the fenders away from the engine.
The PIP is part of the distributor assembly and while it can be replaced it is hard to do so most people replace the entire distributor assembly.
I have not replaced anything yet. Taking it on a 2-hour trip next weekend so we will see how it goes.
Steve
Ran fine till I pulled off the interstate, then popped and backfired and sputtered and died. Attempts to start resulted in strong cranking but sounds of sputtering as if it was out of gas. I have a relatively new fuel pump.
I checked my battery connections (I had removed the battery during radiator replacement) and discovered the negative terminal was loose. I tightened it but when I tried starting still was getting some sputtering.
While I was waiting for a tow, it fired up and ran fine.
Either I threw something for a loop by having a loose/disconnected negative battery terminal, or I may have had a thermal problem with some electronic thing. I got no CEL codes thrown.
Culprits I have been directed to are the ICM, the EEC, or the PIP. The ICM and EEC are said not to be primary culprits for heat as they are mounted on the fenders away from the engine.
The PIP is part of the distributor assembly and while it can be replaced it is hard to do so most people replace the entire distributor assembly.
I have not replaced anything yet. Taking it on a 2-hour trip next weekend so we will see how it goes.
Steve
