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1990 Ford F-150 Custom 5.0L Poor Idle Quality, Surge
this truck when idling surges from 800 rpm to 1500 rpm always. as far as the owner could tell us, was that this started after the induction service was done. i found no external vac leaks, iac was replaced, egr removed and inspected ok, i checked the throt...
FIX posted 4/5/1999
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Related Documents & Media | VIN | 1FTEX14N5L |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / EFI |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Surge |
| Occurs | Always, Idle |
| Misc. | Pick Up |
Trouble Codes
| 12 | Rpm could not be controlled upper limit band |
| 13 | Rpm could not be controlled lower limit band |
Message Closed w/FIX
Vehicle Data
1990 Ford F-150 Custom
| VIN | 1FTEX14N5L |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / EFI |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Surge |
| Occurs | Always, Idle |
| Misc. | Pick Up |
Trouble Codes
| 12 | Rpm could not be controlled upper limit band |
| 13 | Rpm could not be controlled lower limit band |
Video