How do you know if your fuel pressure regulator for your 1997 Mercury Villager is faulty?
it's probably not, check your distributor, i had similar problems, changed regulator, fuel pump, car still would stall or hard start. it turned out to be my distributor. i will repeat, this is a problem with the villager, they go bad quick.
What could be the problem for the fuel injectors to stop working on a 95 chev with the 4.3 throttle body?
The Villager uses a 3.3 V-6, not a 3.0. Stalling can be caused by many problems, including: 1. Needs a tune up. Worn plugs, worn distributor cap, etc. 2. Low fuel pressure. Fuel pump or pressure regulator may be faulty. 3. Air leaks in intake system. 4. Severely worn engine, burned valves, etc. 5. One of many possible intermittent problems, including defective wiring or shorts, failing sensors, faulty relays, defective PCM, etc. In order to…
If you Google "Symptoms of a faulty fuel regulator" you will get quite a few hits. If the regulator is bad it may cause either a drop in fuel pressure or an increase in fuel pressure at the rail . A drop in fuel pressure, if severe enough, can cause bad or no idle condition, engine starving for fuel and etc. If the regulator is causing excessive pressure it can cause fouled plugs, black smoke…
Why would a 1989 Toyota supra start and run fine for 5 minutes with a smooth idle and everything and then stall and not start again?
What is wrong with my 1994 geo prism Li 6 Cy that has problems starting but after a few tries turning the key and grinding key into ignition it will start?
You could have a faulty fuel pressure regulator or defective ignition switch. You could have a faulty fuel pressure regulator or defective ignition switch. You're not real clear on the starting problem as to whether it won't crank or just takes several tries before it starts. Maybe you just need a tune-up.
There are many things that can cause misfires. Bad plugs or plug wires, a worn out distributor cap, burned or worn valves, low compression, plugged or worn fuel injectors, faulty fuel injector harness wiring, low fuel pressure, and so on. It will require diagnosis by someone with the knowledge and equipment to determine the actual cause.