1992 Aerostar with 163,000 miles. Was fine until a couple months ago. Now it won't start cold without a shot of starting fluid (I am using EFI intake cleaner for lack of other). Once running it will restart fine. After the starting fluid it may throws a check engine light that goes off after a while, and it can lack power and miss a lot until after a mile or so.
Shop checked temp sensor okay so concluded the computer should know to give it extra shot of fuel on cold start.
I took the ignition module to have it tested. They ran the test 3 times and it came up good every time.
Shop is thinking it may be the fuel pump, but that was replaced some time ago (see below) and why would it run at all if it's the fuel pump.
Car has been run all of 600 miles in last two years and often sits for weeks. It always had a come and go rough idle problem. Stuff that has been replaced include:
18,000 miles ago:
-Rebuilt distributor
-Cap, Rotor, plugs, wires
-Fuel filter
-New ignition cylinder in steering column
-Newer coil
-New idle air control valve
35,000 miles ago: New ignition module
44,000 miles ago: New Motorcraft fuel pump
~60,000 miles ago: New oxygen sensor
Shop checked temp sensor okay so concluded the computer should know to give it extra shot of fuel on cold start.
I took the ignition module to have it tested. They ran the test 3 times and it came up good every time.
Shop is thinking it may be the fuel pump, but that was replaced some time ago (see below) and why would it run at all if it's the fuel pump.
Car has been run all of 600 miles in last two years and often sits for weeks. It always had a come and go rough idle problem. Stuff that has been replaced include:
18,000 miles ago:
-Rebuilt distributor
-Cap, Rotor, plugs, wires
-Fuel filter
-New ignition cylinder in steering column
-Newer coil
-New idle air control valve
35,000 miles ago: New ignition module
44,000 miles ago: New Motorcraft fuel pump
~60,000 miles ago: New oxygen sensor