Loves older explorers need help asap

[Mangus17]

I have a 1995 explorer for with 190k miles, I can't for the life of me figure out what is going on.
1. I'll get a random check engine light but 5 different scanners won't read it

2. Engine starts fine and runs just fine on a cold start but once it warms up my RPMs surge from 2500k to 0 and back up to 2500k and power is almost nil and takes forever to get up to speed.


I have changed the fuel filter, the spark plugs and wires and still no change

 

[974X4BLACKSPORT]

Sounds like a vacuum leak, might want to change the intake manifold gaskets. What engine does it have, am assuming v6.

 

[swshawaii]

4.0L OHV only for 1995, but good call checking for vacuum leaks.
Ford Explorer - Wikipedia

*** This should work on 1st Gen 91-94 Explorers and also 95 2nd Gen. The 95 got a face lift but uses the same 1st Gen brain. From what I read if you have a 96+ you HAVE to have a code reader.****

How To: Pull Trouble Codes on a 1st Gen Explorer (paperclip method)

 

[BrooklynBay]

Welcome to this forum! What kind of scanners were used which didn't work?

 

[Mangus17]

There were a few scanners, a snap on, 2 Bosch, and a couple others

I'm trying to upload a video but it keeps saying error

 

[BrooklynBay]

You need an elite membership to upload. You could link it from another website.

 

[Mangus17]

95 explorer - YouTube

 

[Rick]

Sure looks like an electrical issue with how fast it cuts in and out, not a vacuum leak. I would start by checking all of your electrical connections, ground straps etc.

 

[974X4BLACKSPORT]

Probably not a vacuum leak, looks more like a continuity problem with some wiring, possibly chaffing, thanks for the video to clear things up!

 

[Mangus17]

Fuel pump went out, just picked one up, well see if that's been the issue which I have kind of been suspecting

 

[RickOTR]

Why is your Overdrive light blinking. Fuel pump could be a problem, but the blinking OD light has me wondering about other underlying concerns as well.

 

[Mangus17]

Already tried that as a recap here's all I've tried.
I've changed the plugs and wires and ignition coil, fuel pump, pcv valve, checked the idle control that's working just fine, I've cleaned the maf, egr is working im just at a loss, I will unplug the egr, map, throttle position sensor and it still does the same thing

 

[gmanpaint]

After getting the codes with an obd1 reader from under the hood....

Cheap but nice reader
https://www.amazon.com/INNOVA-3145-...&s=gateway&sprefix=obd1+reader,aps,158&sr=8-1

Do you get any h02 codes, saying lean conditions on banks 1 or 2, or both?

 

[410Fortune]

1995 uses a paper clip to test codes not a scanner, 95 is an odd year, it has a OBD2 port but it is not active. You check codes same as a 1994 explorer

Check battery cables and ground wires
Check fuses and relays in the power dist box under hood look for loose pins or corroded connectors

 

[EB4X]

On my 95 the auto parts store OBD2 code reader would go through cycle and then give 'error' beep etc at end of scan...but then once hooked up to their PC it would give proper readouts.....

 

[Turdle]

Replace the ECM relay, and, the fuel pump relay. Check the sockets which they plug in to for heat damage.

 

[gmanpaint]

That port under the dash does not work for any scanners. As said, 95 is an odd year, and is not obd2.

 

[EB4X]

I got TWO OBD2 readouts from parts store on my 95....yes "appears" not compatible...'error' reading.... but then when hooked up to PC would spit out codes / issues......

 

[Mbrooks420]

If you got OBD2 connectivity you have a 96 model year. It might have been BUILT in 95, but it’s a 96.