Engine keeps cutting out | Ford Explorer - Ford Ranger Forums - Serious Explorations

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Engine keeps cutting out

Dan R

Active Member
Joined
July 6, 2011
Messages
55
Reaction score
6
City, State
Santa Clara, CA
Year, Model & Trim Level
1993 Ranger 3L RWD
I have a very annoying problem. Engine starts up and runs well. Then after about 10 min starts to cut out. Either when moving when it hiccups and restarts or when idling when it can be immediately restarted. The Check Engine light flickers on and off (1993 model OBD I). The voltmeter flickers a bit. I have replaced the fuel pump inertia switch and PCM relay to no effect. I have the alternator voltage regulator on order. Grounds have been checked. Anything else I should be looking at?
 
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Dora 1993

Member
Joined
November 5, 2017
Messages
34
Reaction score
8
City, State
Fargo, ND
Year, Model & Trim Level
1993 Explorer XLT
Does it stutter when you try and drive it
 
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Turdle

Lowrider
Staff member
Moderator
Elite Explorer
Joined
June 16, 2003
Messages
29,697
Reaction score
1,211
City, State
Humboldt, KS
Year, Model & Trim Level
2000 Mounty
Carefully remove the ECM, take off the cover and look for leaking, swollen capacitors, and/or bad solder joints on the circuit board. These can be repaired.
 
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Cheddar Dan

Member
Joined
November 29, 2010
Messages
40
Reaction score
3
City, State
White Pine, TN
Year, Model & Trim Level
1994 XLT
You might want to double clean your MAF if you haven't already.
Good luck!
 
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Dan R

Active Member
Joined
July 6, 2011
Messages
55
Reaction score
6
City, State
Santa Clara, CA
Year, Model & Trim Level
1993 Ranger 3L RWD
I cleaned the MAF, didn't look dirty. I did notice that one of the electrical connector pins was white with corrosion. Cleaned it up put Noalox on the pins and it runs as before. This is odd as the connector is sealed with a rubber gasket but the corrosion was obvious. Thanks guys!
 
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