SFCRangerDoc
Active Member
- Joined
- September 2, 2015
- Messages
- 58
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- City, State
- Campbell, CA
- Year, Model & Trim Level
- 1993 Ford Explorer
93 explorer sport starting issues --- resolution page 5!!!!
Greetings folks! New user here to the forums. I'm running into an absolutely frustrating problem with my wifes 93 Explorer Sport. Scenario is as follows:
Car will struggle to start when cranked. I have put in a new battery so I know it's not that. When you crank it just won't catch. Typically is a LOT worse when it is colder outside (mornings) but its not limited to cold morning starts. I have put a fuel pressure gague on the rail and I know I'm getting pressure. It's on the low side, but still should be more than enough. I will sometimes turn the key to run 3-4 times w/out cranking just to be sure the fuel system is primed and all that too. I have replaced the fuel pressure regulator up at the rail and have verified with my volt meter that the TPS and IAC valves are working properly and getting the correct voltage. I have cleaned all the contacts and tested the ECU/Fuel pump relays as well. When i am actually able to get the car started pulling either relay causes the car to die. The strange thing is that when I do get the car started about half the time it stutters and sputters and acts like it is going to die and the other half of the time it just hums along. Usually after i can get it started re-starting the car is not a problem unless it sits for a few hours. On the road it runs/idles fine as well. Power is good and gas milage is to be expected for an older car. I'm just pulling my hair out on this one because there's no rhyme or reason to when or why it sometimes takes forever to start, sometimes it'll just crank off w/out issue. (this morning I cranked it probably 12 times and on the 10th crank it acted like it was going to catch finally but died. I was reading somewhere that the ECU itself could be going bad but I'm not getting a CEL or anything like that either.
Greetings folks! New user here to the forums. I'm running into an absolutely frustrating problem with my wifes 93 Explorer Sport. Scenario is as follows:
Car will struggle to start when cranked. I have put in a new battery so I know it's not that. When you crank it just won't catch. Typically is a LOT worse when it is colder outside (mornings) but its not limited to cold morning starts. I have put a fuel pressure gague on the rail and I know I'm getting pressure. It's on the low side, but still should be more than enough. I will sometimes turn the key to run 3-4 times w/out cranking just to be sure the fuel system is primed and all that too. I have replaced the fuel pressure regulator up at the rail and have verified with my volt meter that the TPS and IAC valves are working properly and getting the correct voltage. I have cleaned all the contacts and tested the ECU/Fuel pump relays as well. When i am actually able to get the car started pulling either relay causes the car to die. The strange thing is that when I do get the car started about half the time it stutters and sputters and acts like it is going to die and the other half of the time it just hums along. Usually after i can get it started re-starting the car is not a problem unless it sits for a few hours. On the road it runs/idles fine as well. Power is good and gas milage is to be expected for an older car. I'm just pulling my hair out on this one because there's no rhyme or reason to when or why it sometimes takes forever to start, sometimes it'll just crank off w/out issue. (this morning I cranked it probably 12 times and on the 10th crank it acted like it was going to catch finally but died. I was reading somewhere that the ECU itself could be going bad but I'm not getting a CEL or anything like that either.