Q: Fuel pressure low - 1991 Plymouth Voyager

asked by on November 10, 2016

we have a 1991 plymouth voyager with a 2.5 engine, it will not start , we checked the fuel pressure and it is 40 and it should be 43 , is it the fuel pump? before it would run rough, not idle very good, it would lose power, shut it off, and it would restart and run for a while and need to shut off again and restart. now it will not start at all
My car has an automatic transmission.

Mass Airflow Sensor Replacement $188.36 - $786.53 Get a Quote
Clean Throttle Body $109.17 - $370.59 Get a Quote
Car is hard to start Inspection $94.99 - $114.99 Get a Quote

Hi there. If the fuel pump pressure is lower than it should be, it may impact the vehicle’s ability to start and run efficiently. However, 3 lbs. shouldn’t be the only item that may be faulty on your Voyager. You may want to check out the mass air flow sensor, or have the fuel injectors and throttle body cleaned. You might also have an electrical issue that’s causing the lower fuel pressure, or excessive debris trapped in the fuel tank, which might be causing your engine issues. If you are continuing to have trouble, please contact one of our local professional mechanics to complete an inspection of the hard start.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Is It Safe To Drive a Vehicle With Broken Suspension?
Driving a vehicle with a broken suspension is like walking with a bad knee or broken leg. The support is gone, the weight is shifted and your stability is compromised. This condition can cause the vehicle to sway or instability...
Car losing power, shaking, and sputtering.
Leaving the gas cap off wont usually cause drivability concerns. Its function is basically to keep fuel vapors where they belong. If left off it often triggers a check engine light, but nothing more. Notice how I said "usually" in...
Car starts and then dies
Symptoms like this can be caused by a number of things. Low fuel pressure, no spark, an engaged theft deterrent system are all examples of things that can cause symptoms similar to what you are describing. I would suggest seeking...
Flood Damaged Honda Accord. HELP.
Flood damage is a serious problem. When most people hear flood, they turn and run for the hills and there is a reason for it. First, even if you didn't fry all your electronics, you are asking for rust and...
No sound from speakers but the dash panel works
Hi, thanks for writing in. This is likely an issue with the audio control module which controls the output to speakers and any pre-amp controls. I recommend having one of our certified automotive technicians from YourMechanic come to your home...
The car idles very nicely. When I press the gas pedal it does not pick up speed, rather it sounds like it is dying for air.
From what you describe it would appear that your vehicle is experiencing some sort of engine performance issue. Hesitation when put into gear can be caused by a wide variety of things. Possible causes can range from issues with the...
Can i change a door barrel lock on a rover streetwise as key fob shell is broken
You don't say what year or model your Rover is, so it's difficult for me to be very helpful. On some vehicles, there is a separate emergency key that pops out of the key fob and can be used to...
Fuel spills out when fueling, even if the tank is near empty. What's happening?
Hi There, What you are describing sounds like you may have a faulty purge solenoid in your EVAP system. Your car has a small purge valve called a purge solenoid (https://www.yourmechanic.com/services/evaporation-vent-solenoid-replacement) that controls the venting of fumes from the fuel...
got a new batter and it won't stay charged, alternaor or fuel pump?
You do most likely have a charging system problem since you can get a jump start and can drive a while on the charged battery until it gets low on voltage and no longer runs the computer and fuel fump....

Related articles

Symptoms of a Bad or Failing EGR Temperature Sensor
Common signs include engine ping or knock, the Check Engine Light coming on, and failing an emissions test.
Symptoms of a Bad or Failing Mass Airflow Sensor
Common signs of problems with a mass airflow sensor include running rich at idle or lean under load, decrease in fuel efficiency, and rough idles.
How Long Does an EVP Position Sensor Last?
An An integral part of your vehicle's EGR (exhaust gas recirculation) system is the EVP position sensor. This sensor has the important job of figuring out where the gate is positioned in order to allow gases to pass through to...