Skip the auto shop - Our mechanics make house calls

Q: turns over, wont start

asked by on

Bought van a few months ago and had been running fine..One day when accelerating on highway is started sputtering, backfired, acted like it wanted to die. Then it straighted out and seemed ok. Couple days later on the way home from work it did the same thing. Next morning wouldnt start. Got home from work and it did. Over the weekend wouldnt start again. Turns over good just wont fire. Come back couple hours later it fires up...Same pattern since. Guy at work said check fuel pump. I can hear it hum. Put gauge on at the fuel rail and read about 40 when cranking. When it would start it bounced between 35-45. Replaced pump yesterday. new pump kicks on fine, but still no start, just turns over. Took one of the plugs out and grounded against block. Had spark, yellow not blue. Replaced plug came back in couple hours and it started! This AM cranks, no start. I had bought new plugs and wire for a tune up when I bought it so I guess I'll go intstall em. No gas smell, smoke etc

My car has 136000 miles.
My car has an automatic transmission.

A: There are a couple of possibilities that co...

There are a couple of possibilities that could be causing your issue. The fuel filter can often times get clogged up and this can prevent fuel from reaching the engine. The fuel filter is commonly replaced at the same time as the fuel pump. I would recommend replacing this part as well. It would not hurt to have the ignition system checked as well. When a vehicle cranks but will not start it is missing one of three things fuel, compression, or ignition. Compression is the least likely cause. The issue you are having is most likely being caused by the fuel or ignition system. I would replace the fuel filter prior to replacing the spark plugs since this is a combo service with the fuel pump. Even if the fuel filter does not resolve the issue, it will prolong the life of the new fuel pump. If you would like, a certified technician from YourMechanic can come to your home or office to replace your fuel filter, and or pump.

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・Save up to 30%

Get a quote

What others are asking

Q: How do I find the part number on a wiring harness?

Most wiring harnesses will have identifying part numbers in different places on the harness. The number will be on a piece of tape wrapped around the harness. If you cannot find any, then you will have to identify it by...

Q: Wipers not working

Hello. It is possible that your windshield wipers are not working because of the motor. However, there are other components in your windshield wiper system that could prevent the windshield wipers from working. The windshield wiper transmission, combination switch, or...

Q: Is leaving leaked A/C compressor as is a problem for the car?

A refrigerant leak in your vehicle's A/C system not only allows coolant to leak, but also allows moisture from the atmosphere in the system. Over time this could corrode the A/C lines, evaporator, or condenser, and fill the dryer up...

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 to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.