Jeepwalker
Well-Known Member
- Messages
- 875
- Location
- WI
Just curious if there was a known set of problems which cause the I-5 engines to stall, or near-stall at stop signs?
Mine doesn't quite stall at stop signs, but the engine drops speed and chugs for a second, then recovers. It's done it since I've owned it.
Yesterday I was looking at the scanner and noticed when I rev the engine up and it revs down, the Throttle voltage dips way down below the normal idle voltage the split second before the near-stall, then the voltage recovers to normal a split second before the engine recovers to normal idle. I didn't write down the voltage readings, but I'd say it was 25% lower voltage than normal prior to recovery.
Just curious if anyone else had noticed this? I'm wondering if replacing the Accelerator Pedal sensor, or the motorized Throttle Actuator has been shown to resolve the near-stall issue (???).
I doubt it's the cat as my vacuum is perfect (a bad cat can cause low vacuum). I haven't yet measured the exhaust pressures. However I was seeing a definite correlation between Throttle voltage drop (below normal) and near stall.
What are your thoughts and experience on this?
Thanks
Mine doesn't quite stall at stop signs, but the engine drops speed and chugs for a second, then recovers. It's done it since I've owned it.
Yesterday I was looking at the scanner and noticed when I rev the engine up and it revs down, the Throttle voltage dips way down below the normal idle voltage the split second before the near-stall, then the voltage recovers to normal a split second before the engine recovers to normal idle. I didn't write down the voltage readings, but I'd say it was 25% lower voltage than normal prior to recovery.
Just curious if anyone else had noticed this? I'm wondering if replacing the Accelerator Pedal sensor, or the motorized Throttle Actuator has been shown to resolve the near-stall issue (???).
I doubt it's the cat as my vacuum is perfect (a bad cat can cause low vacuum). I haven't yet measured the exhaust pressures. However I was seeing a definite correlation between Throttle voltage drop (below normal) and near stall.
What are your thoughts and experience on this?
Thanks
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