Skip the auto shop - Our mechanics make house calls

Q: Stalls when hit gas

asked by on

My hard body 4x4 will crank without hesitation and idles perfectly. But as soon as you touch the gas pedal it sputters and stalls. The same thing happens when you hit the rpms and let off the gas. Do you have any idea what’s happening? How can I fix this?

This sounds like it could possibly be a fuel-related problem for your 1991 Nissan Pickup. I would want to know what the fuel pressure is by testing with a gauge. I also recommend doing a compression test to verify good compression on all four cylinders. The timing chain may have jumped a couple teeth causing the can timing to be off. The chain tensioner is oil pressure driven. You need to check the marks between the crankshaft and the cam to be sure. If you need help with any of this, a certified technician from YourMechanic can come to your home or office to diagnose the stalling issue and make any appropriate adjustments or repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: Engine not turning over

There are many reasons why a car won't start. Everything from a low battery, fuel pressure issues, to ignition system problems, crank and cam sensors, engine timing, etc. Because of all the variables and the limited information, it is very...

Q: Some mornings (the past couple of mornings) my car wouldn't start, not even turn over, 1991 Acura Integra

Hello - I believe your "no start" or "hard start" is a problem with the Neutral Safety switch (sometimes called a "range sensor". It determines that your transmission is in either Park or Neutral, and allows the car to start....

Q: Should i buy this Acura RSX Type S with a idle control valve that need to be fix?

Hello. This is a very low price for an otherwise great car. I would recommend having an expert mechanic inspect the car prior to the purchase to check for other potential issues. Although, the two issues you have described are...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...