ok well here we go last year wife bought an after market car starter worked fine??? anyways we drove 20 miles stopped for an hour drove another 15 miles stayed another hour and thats when the fun started turned on key to start and while cranking over the headlights and dash lights were flashing as well as door locksbut no start . towed it home and since ive taken out remote starter with dealer saying its ok still wont start up but cranks .so i have battery tested it was replaced checked all fuses in dash all ok . stuck with no idea other than take it to a pricey mech any thoughts or suggestions will be helpful

 

Do you have a means of testing for spark and fuel injector pulse when attempting to start the engine? Is the "Theft" or "Security" light on the instrument cluster flashing when you try to start the truck? When you removed the remote start system did you also remove the PATS bypass module?

-Rod

 

Going to check fuel and spark today now that its warmer don't know what bypass is also the theft light only flashes while not starting ????

 

The bypass module is the module that would need to be installed for the remote starter to work. It needs to bypass the Passive Anti-Theft System (PATS) from the factory. The flashing "Theft" light when the truck fails to start is an indication that the anti-theft system has experienced an unauthorized start attempt. I wouldn't be surprised if the bypass module installed for the remote start is causing the issues. It might not be shutting off so the PATS is seeing more than one programmed key and therefore refusing to allow the engine to start (shutting off fuel injector pulse).

-Rod

 

Solved it was the fuel pump

 

Nicely done, sir. Would you mind telling us how you found the problem? Enquiring minds want to know.

 

Unfortunately I paid a well priced mechanic to figure out problem and fix it as I really didn't want to lay around for a day on the garage floor

 

I have an Explorer Sport 2001 that will not crank nor start.
I have replaced the following:
Crankshaft, camshaft sensors
Ignition coil
Ignition switch, neutral safety switch
Fuel filter
Fuel pump
Starter
The battery is less than 6 months old
Still, the car will not crank, will not start.
I have spark, voltage and fuel.
The PCM does NOT communicate with the scanner. I purchased a used PCM off of eBay. This one does communicate with a scanner and gives the following DTC codes:
P1120-- Throttle Position Sensor out of range
B1601-- Unprogrammed Pats Key
Since the car is in the Caribbean I can't tow it to a dealer.
Any help or insight would be greatly appreciated.

 

Welcome to FTE. You should start a new thread with this issue.

If the codes you got are correct, there is your issue. The throttle position sensor will cause problems, but the engine should still crank. Has anyone fiddled with the sensor or anything in that area?

Unprogrammed PATS key: I think it should crank but it isn't going to start with this issue. Your new ignition switch--was it and the new key programmed? Do you still have the old one?

Was the new PCM from a 2001 Explorer, same engine and trans?

Check your ground cable and connections, as well as the positive side to the starter as well.