Cali' Explorer
Well-Known Member
- Joined
- December 14, 2003
- Messages
- 474
- Reaction score
- 0
- City, State
- Sacramento, CA
- Year, Model & Trim Level
- '97 XLT 5.0
410-
Well, that depends on how much you trust Haynes and Alldata, that's what it really comes down to. From what I've read, they both say that the arrow should be pointing straight front to back on the '96 on up Explorers (in line with the engine block center line).
You can see the information for this at the following page which is supported by AllData:About: AllData CMP Sensor Installation. In both cases, they say "Ignore where the pointer was before and match these specs".
One other thing. Based on the isntructions and how the tool is made, I don't think you can be off that much. Since you are dealing with the cam gears, I'm guessing you will either be near the centerline or off by +/- 22*. So, if you are close to centerline with the tool, that's probably as close as you'll get.
From what I understand, the computer only uses this with the Crankshaft Position Sensor to make sure which rotation of the motor it is on. The absolute worst that will happen if this is off is that the engine will operate in "Limp" mode, but that's part of the issue, all this information is kind of loose out there.
I am going to have my mechanic buddy pull the specific instructions from AllData for the '97 to see if they differ in anyway from the '96 instructions, but according to my friend, they never mark them before removal and just follow AllData's information on resetting it and they've never had problems with customers vehicles.
Well, that depends on how much you trust Haynes and Alldata, that's what it really comes down to. From what I've read, they both say that the arrow should be pointing straight front to back on the '96 on up Explorers (in line with the engine block center line).
You can see the information for this at the following page which is supported by AllData:About: AllData CMP Sensor Installation. In both cases, they say "Ignore where the pointer was before and match these specs".
One other thing. Based on the isntructions and how the tool is made, I don't think you can be off that much. Since you are dealing with the cam gears, I'm guessing you will either be near the centerline or off by +/- 22*. So, if you are close to centerline with the tool, that's probably as close as you'll get.
From what I understand, the computer only uses this with the Crankshaft Position Sensor to make sure which rotation of the motor it is on. The absolute worst that will happen if this is off is that the engine will operate in "Limp" mode, but that's part of the issue, all this information is kind of loose out there.
I am going to have my mechanic buddy pull the specific instructions from AllData for the '97 to see if they differ in anyway from the '96 instructions, but according to my friend, they never mark them before removal and just follow AllData's information on resetting it and they've never had problems with customers vehicles.