Skip the auto shop - Our mechanics make house calls

Q: Cruising steadily, loss of acceleration, and engine cutting out

asked by on

I was driving down the highway, cruising at about 50 MPH, when I experienced a loss of acceleration. Shortly after, complete loss of power and the engine cut off. I was able to, safely, roll to the side of the road where I sat and tried to diagnose the problem for a few hours but eventually had to call a tow truck. My vehicle is a 1990 Chevy Blue Bird Mini Bird, with a 6.2 diesel engine and a Turbo 400 transmission. It is based on the P30 step-van chassis. I was able to narrow it down to a fuel problem.. every time I try to crank the engine again, it sounds like it's going to start but it just won't. I don't believe there was fuel coming out of the fuel injectors (if there was, very little). One of the first things I checked was the tank (and I had plenty of fuel). My mechanic is telling me the fuel distributor (and the o-ring in it) needs to be rebuilt, probably, however I don't see anything online about a fuel distributor with my vehicle. Any thoughts or, hopefully, good news?

My car has 217000 miles.
My car has an automatic transmission.

A: Hi there. One of the most common issues wit...

Hi there. One of the most common issues with early 90's diesel engines are the fuel injection pump's o-ring can dry out or crack overtime causing fuel pressure and delivery issues.

Although it's possible to rebuild the fuel pump, in most cases, it's recommended to replace the pump with a new unit, especially if you're going to keep the Blue Bird bus for a while.

Your Chevy most likely has a P-30 diesel fuel pump. Research that part and see if that's the unit that matches the one on your vehicle. This type of vehicle is not one traditionally serviced by our professional mechanics, so hopefully your fleet mechanic will do a good job rebuilding or replacing the fuel 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

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: have to push on main fuse box to get the engine to start and idol

You need to first check all the fuses, the connections at the battery cables, and the connection at the cable to the fuse box. My guess is that there is likely a loose connection at the fuse box or at...

Q: Car stays cool while idling but once you start driving it it starts to overheat.

If the cooling fan is too small for the engine, then it may be enough to cool it at idle but not at higher engine speeds. Make sure you are not running under drive pulleys. You can check the coolant...

Q: The car cannot start right away when the engine's cold

It sounds like you are on the right track with thinking it's a fuel-related issue with your 2000 Audi A8 Quattro. Your Audi may not be getting enough fuel for a cold start due to incorrect sensor data. Or it...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.