Q: fuel pressure fluxtuates while runninh
I attached my fuel pressure gauge it reads at 60 but shaky when i hit the throtle it straightens out it droped down to 40 a couple times is it my fuel regulator or fuel pump
My car has 140000 miles.
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
What others are asking
Possible alternator problem
Hi. An illuminated dashboard charging light is almost a sure sign that the alternator needs to be replaced. If the light is not on and you suspect a problem with the alternator, there are a few ways to test it....
EVAP Small Leak Code P0442 Lit MIL. Code cleared, has not reappeared. But, Diagnostic tool still shows Emission Related DTC's
In order for all the monitors to clear you will have to do a lot of driving to see if it clears. The last two to clear take highway driving at a steady speed to clear and may take a...
Key will not turn off engine in ignition 1997 Oldsmobile Achivea
Hello there. There are a few reasons your 1997 Oldsmobile Achieva is not turning off. The most common causes, would be a failed ignition switch, key cylinder, or a wiring fault. You may be able to remedy the issue by...
"Transmission Service Urgent" light is on.
Hi there. Check the transmission fluid level and make sure that its full. When checking the level, look at the color of the fluid. If the fluid is red or dark red, then I recommend draining the transmission oil and...
I'm not sure if it's a thermostat or the water pump that needs replaced
The heater not working in some cases may be related to the overheating problem you are also having. This may be due to a faulty heater blower motor or potentially a bad heater core (https://www.yourmechanic.com/services/heater-is-not-working-inspection). As you may know, the...
My front censors not working
Hi there. In order to give you some accurate ideas as to what is causing this problem we'd need to know your year, make and model of vehicle. However, if the issue has been previously diagnosed, and you're looking for...
Replaced the purge valve solenoid in my Buick rendezvous now the car won't turn over
Hi there. Anytime you complete repair or replace mechanical components, it is critical to remove the battery terminals before any further steps. It is possible that if the battery cables were not removed, that you've burned a fuse or relay....
2003 pontiac,montana wont shift out of first when engine gets warm
If transmission will not shift only when it gets warm and shifts perfect when cold then the problem may be in one of the sensors and would require the computer scanned for codes to see if vehicle is going into...
Honda Pilot sputtering, shaking, engine light flashing
Generally, the check engine light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) comes on when something fairly serious is going on with the vehicle. This can happen for many different reasons such as a faulty mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement), a faulty O2 sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement), a...
Related articles
Pontiac Certified Pre-Owned (CPO) Car Program
If If you’re in the market for a used Pontiac vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on...
Understanding the Pontiac Oil-Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Pontiac Oil Life Monitor (OLM) indicates when and what service your car needs.
How to Troubleshoot a Car That Shudders When Turning
If your car steering wheel shakes or shudders when turning, it could be the tires, power steering, or steering damper.
Browse other content
Services
Maintenance
Estimates