Welcome Visitor! Please take a few seconds and aeidian
Well-Known Member
- Joined
- Oct 7, 2010
- Messages
- 127
- Vehicle Year
- 1989
- Transmission
- Manual
89 2.9 4x4 5 speed.
So I was driving the truck and parked it, came back out to start it and it just cranked and cranked and never fired. Put a test light in the spark plug boot, turned it over no light. Test light in the ignition coil boot turned it over no light. Warrantied out the coil, still no light when cranking. Didn't hear the fuel pump kick on when the key was turned out. All signs pointed to EEC relay (or whatever the actual relay is called because no part store in my area has ever heard of a EEC relay or has a listing for it), so I pulled the fuel pump relay I bought 2 years ago when I thought the fuel pump relay was bad and put it on the brown connector relay and then put the original fuel pump relay back on (I kept it in the glove box because I suspected there was nothing wrong with it). Truck fired right up but had a knock real loud coming from the top of the motor. Not a rod knocking, and I don't think it was even a lifter tap. If it was a spark knock, it was damn loud. After I drove the truck a bit it smoothed out and no more knock. This relay I have in it has 5 prongs, vs the 4 that was in there. I suspect its a "universal" relay, but I don't remember where I got it. I drove to the part store to find a EEC relay replacement, doesn't exist according to them. They pulled the part number off the relay, what they could read, nothing. When I do a search on Advance for a EEC relay, I get a BWD relay that looks like the one I have on there now. So what's this thing REALLY called or what's the part number?
EDIT: Solved! The number on the relay is e3af 12a646 b2a. I gave that number to autozone and they gave me the part number 19840. It was a different number than the replacement relay I had one there. The diagrams looked pretty close, except from an arrow on the resistor part.
So I was driving the truck and parked it, came back out to start it and it just cranked and cranked and never fired. Put a test light in the spark plug boot, turned it over no light. Test light in the ignition coil boot turned it over no light. Warrantied out the coil, still no light when cranking. Didn't hear the fuel pump kick on when the key was turned out. All signs pointed to EEC relay (or whatever the actual relay is called because no part store in my area has ever heard of a EEC relay or has a listing for it), so I pulled the fuel pump relay I bought 2 years ago when I thought the fuel pump relay was bad and put it on the brown connector relay and then put the original fuel pump relay back on (I kept it in the glove box because I suspected there was nothing wrong with it). Truck fired right up but had a knock real loud coming from the top of the motor. Not a rod knocking, and I don't think it was even a lifter tap. If it was a spark knock, it was damn loud. After I drove the truck a bit it smoothed out and no more knock. This relay I have in it has 5 prongs, vs the 4 that was in there. I suspect its a "universal" relay, but I don't remember where I got it. I drove to the part store to find a EEC relay replacement, doesn't exist according to them. They pulled the part number off the relay, what they could read, nothing. When I do a search on Advance for a EEC relay, I get a BWD relay that looks like the one I have on there now. So what's this thing REALLY called or what's the part number?
EDIT: Solved! The number on the relay is e3af 12a646 b2a. I gave that number to autozone and they gave me the part number 19840. It was a different number than the replacement relay I had one there. The diagrams looked pretty close, except from an arrow on the resistor part.
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