Won't start with a new battery

Did the fuel pump come on?

Did you check fuel pressure at the motor?


Try jumping the relay to get pump on?

Read a wiring diagram-- so you know what your doing?

Check Power & Grounds to pump when the tank was down?

When you jump started the vehicle, it started as normal and you drove to a shop to have a new battery installed.?? Correct??

1. Who removed the old battery and installed the new one?

2. Did the car start normally immediately after the new battery was fitted? How frequently were you able to drive the car on the new battery before the problem you described appeared?

3. Has anything been done to the vehicle since the new battery was fitted.?

That suggests that the problem is in the harness, something in the connector or wiring is causing an open circuit. You will need to have the circuit tested to find the fault. Ford alternators have known connector issues & new aftermarket connectors are readily available at most auto parts stores.

un hook your battery for 15 minutes then retry to start

I would suggest a full synthetic oil, next time & stay with 5W-30
That will be better on start up

I have no idea why it won't start after only changing the oil

I think that was just a coincidence

I just installed a new throttle body ,because the motor has
acted up for 7 months & unknown the battery was failing
as I was diagnosing some odd behaveour

I was using professional scan tool software & when that
went weird I saw the computer module & battery voltages
going down,key on,engine off. So strange things happen
with todays electronics. When your think your on your game
things go to the twylight zone

try locking your car with the key and unlocking it with the key, leave it for 30 second or so between the locking and unlocking , the car thinks some one has tampered with it

Make sure battery terminals are clean & tight.Also make sure polarity is correct & battery is fully charged.Thats a good start

it probley shorted out the brain box

Now you have a good battery & a starter that turns over the motor

Have you cycled the key on & off with a fuel pressure gauge on the
fuel rail?

Do you have a fuel filter that isn't over 3 or 4 years old?

Have you checked for spark while cranking ? Use an old plug on the wires,
if you have ignition wires,don't ground the wire without resistance

If you removed the ducting & MAF Sensor it won't start

Tell us what you checked & exactly how that was done.

The starter or it's solenoid

The new battery & alternator didn't
but the problem in there