PStansberry78
Active Member
- Joined
- April 29, 2014
- Messages
- 96
- Reaction score
- 0
- City, State
- Edmond, OK
- Year, Model & Trim Level
- 1993 Explorer XL
Hello All - First time poster.
I recently acquired a 1993 Explorer XL, 4.0L OHV, 5-speed manual transmission. It's well-used, LOL, but overall seems to be in reasonable shape for it's age.
But, it has a problem I can't seem to figure out. Inconsistently (I can't establish a pattern), it will suddenly lose power while driving. As you push on the accelerator, the RPMs will increase and then suddenly drop when it hits around 2000RPM. But it occurs often enough to make it unreliable as a daily-driver, unfortunately.
Also, the check engine light will sporadically flash on for a bit, then off again as this problem occurs.
I'm hopeful you all can help point me in the right direction. After spending some time Googling the problem and looking here on the forum at similar threads, I suspected that it was a fuel delivery issue of some sort, as it also smells as if it is running rich when this issue occurs. So my trouble-shooting to date has centered around the fuel system, mostly.
Here's what's been done already:
I'm now wondering if perhaps the throttle position sensor could be part of the problem? I'll be the first to admit that I'm only a fair shade-tree mechanic, and by no means an expert. So any advice would be helpful.
Thanks in advance.
Paul
I recently acquired a 1993 Explorer XL, 4.0L OHV, 5-speed manual transmission. It's well-used, LOL, but overall seems to be in reasonable shape for it's age.
But, it has a problem I can't seem to figure out. Inconsistently (I can't establish a pattern), it will suddenly lose power while driving. As you push on the accelerator, the RPMs will increase and then suddenly drop when it hits around 2000RPM. But it occurs often enough to make it unreliable as a daily-driver, unfortunately.
Also, the check engine light will sporadically flash on for a bit, then off again as this problem occurs.
I'm hopeful you all can help point me in the right direction. After spending some time Googling the problem and looking here on the forum at similar threads, I suspected that it was a fuel delivery issue of some sort, as it also smells as if it is running rich when this issue occurs. So my trouble-shooting to date has centered around the fuel system, mostly.
Here's what's been done already:
- Fuel filter replaced
- Fuel system flushed/cleaned
- Fuel pressure regulator replaced
- Ignition Coil replaced
I'm now wondering if perhaps the throttle position sensor could be part of the problem? I'll be the first to admit that I'm only a fair shade-tree mechanic, and by no means an expert. So any advice would be helpful.
Thanks in advance.
Paul