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Q: Will defective fuel pressure regulator cause engine to run rich?
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If the engine is not getting gas what is the cause?

Out of gas, blown fuel pump fuse, bad fuel pump, bad fuel pump relay, clogged fuel filter, loose or corroded wiring, defective fuel pressure regulator, or in rare instances a defective computer.


Can a faulty fuel pressure regulator cause a check engine light to come on?

Yes.


What would cause the battery to overcharge?

Defective voltage regulator.


What will cause your 1980 Mercedes SE to overcharge the battery?

Defective voltage regulator which is built into the alternator. You need to have your charging system checked. You should read from 13.5 to 15.5 volts at the battery with the engine idling. Very much more and the voltage regulator is defective.


Will the fuel pressure regulator make your car misfire?

Yes. A fuel pressure regulator maintains the adequate fuel pressure required by the engine. A faulty fuel pressure regulator might leak fuel or cause your engine to run lean. It could create hard starts, knock and ping, or hesitationat full throttle.


Can a bad fuel regulator make your engine run rough?

yes a fluctuation in pressure could cause it. check pressure with a guage


What would cause my1985 Dodge Ram overcharge?

defective voltage regulator


What would cause fuel to be on the spark plug of a 2000 Camaro?

There could be several causes. The fuel pressure regulator could be leaking. A spark plug or plug wire that is defective. You did not mention if the check engine light is on. It could tell you in which area to look.


Can a bad fuel pressure regulator cause the check engine light to come on?

That would one of hundreds of possible causes.


What would cause gasoline to leak into the oil filter?

The gas is probably not leaking into the filter but the engine. It's caused by a broken diaphragm on the fuel pressure regulator. Replace regulator


What are symptoms of a damaged Fuel Pressure Regulator in a Blazer 98 4.3L V6 Vortec?

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 from exhaust and rough engine performance. Before you change the regulator check for cracked, rotted or disconnected vacuum hose. Also you can connect a fuel pressure gauge to the schrader valve on the rail and monitor the pressure to see if it is in specifications, or to see if the fuel pressure drops rapidly after engine shutdown. Hope this helps and good luck with your problem. Dan


Does pressure regulator make a car not to start if its damaged?

A damaged fuel pressure regulator can cause a car not to start.