1994 Ford Probe car kills around 3500 RPMs

GREENPROBEGT04

MEMBER
1994 FORD PROBE
6 CYL
FWD
MANUAL
200,000 MILES

My vehicle kills around 3500 rpms, doesnt bog down, just flat out kills, electrical stays on, then it takes a few tries to get it to start again, ive heard everything from crank sensor, fuel pump, fuel pressure sensor, injectors, fuel filter, ecu, and mass airflow sensor. Ive replaced the fuel filter and tested the m.A.S. Still insists on being a nuisance. Any ideas?

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Any one of those things could cause it. However, the hard start makes me think fuel. When this happens, have you ever tried to check fuel pump pressure? Also, when it becomes hard to start, have you ever tried to give it a shot of starting fluid to see if it starts right back up?

Again, based on your description, it sounds fuel related. I realize you replaced the fuel filter, but the pump may not be able to keep up at that RPM. As a result, the system pressure drops and it makes it hard to start.

I would recommend starting with that. Let me know what you find. Here are the instructions for checking fuel pressure. Let me know what you find.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

I am assuming that the check engine light hasn't come on since you didn't mention it. Usually an electrical / sensor problem will cause it to come on.

Joe