thevanbulance
Registered User
Sorry to start another thread on this but I've got a series of symptoms that I haven't come across after reading through this forum extensively. Here's what I've got going on:
2WD 1990 e350 ambulance with a 7.3 idi na
Symptom 1: Cold start require me to depress the throttle 1/4 of the way to prevent the engine from starting and then subsequently dying a few seconds later. As long as I depress the pedal at start and keep it there for a few seconds before letting it idle the engine runs fine. No smoke visible at all during startup or when running. So far I've deleted my heater element, replaced my lift pump and checked all the return lines/injectors for leaks (haven't checked the lift pump weep hole bc I can't see it). No diesel leaks visible or diesel smells.
Symptom 2: occasionally at start my engine temp, water in fuel AND parking brake light will all come on and stay on until I attempt to put the van in drive. The shifter acts like it's locked up and won't let me shift until I wiggle it a bit and then it releases and allows me to put it in gear. Once that happens all the warning lights go away. The engine idles with a rougher sound when the warning lights are on but returns to normal once in gear.
Symptom 3: I've noticed when coasting on flat or slightly inclined surfaces I'll get random intermittent engine surges. It doesn't surge when I'm braking or accelerating. Only when coasting and never downhill for some reason. It feels like the van can't decide if it wants to downshift or let it ride is how I'd describe it.
Symptom 4: my rear abs light is on continuously even after replacing the sensor and disconnecting the battery
Now, I know I need to do the return lines (have them on order and will replace asap) but given my other symptoms do we think it's all interrelated to an air intrusion problem or possibly different issues? Any ideas or guidance would be greatly appreciated!
2WD 1990 e350 ambulance with a 7.3 idi na
Symptom 1: Cold start require me to depress the throttle 1/4 of the way to prevent the engine from starting and then subsequently dying a few seconds later. As long as I depress the pedal at start and keep it there for a few seconds before letting it idle the engine runs fine. No smoke visible at all during startup or when running. So far I've deleted my heater element, replaced my lift pump and checked all the return lines/injectors for leaks (haven't checked the lift pump weep hole bc I can't see it). No diesel leaks visible or diesel smells.
Symptom 2: occasionally at start my engine temp, water in fuel AND parking brake light will all come on and stay on until I attempt to put the van in drive. The shifter acts like it's locked up and won't let me shift until I wiggle it a bit and then it releases and allows me to put it in gear. Once that happens all the warning lights go away. The engine idles with a rougher sound when the warning lights are on but returns to normal once in gear.
Symptom 3: I've noticed when coasting on flat or slightly inclined surfaces I'll get random intermittent engine surges. It doesn't surge when I'm braking or accelerating. Only when coasting and never downhill for some reason. It feels like the van can't decide if it wants to downshift or let it ride is how I'd describe it.
Symptom 4: my rear abs light is on continuously even after replacing the sensor and disconnecting the battery
Now, I know I need to do the return lines (have them on order and will replace asap) but given my other symptoms do we think it's all interrelated to an air intrusion problem or possibly different issues? Any ideas or guidance would be greatly appreciated!