Skip the auto shop - Our mechanics make house calls

Q: Takes a long time to crank .

asked by on

Let a shade tree mechanic change the distributor and he didn't put it back on right took to Firestone and they put it back on right but it still takes a long time to crank? Changed the oil sensor unit, crank sensor ,camshaft sensor and still does the same thing.. Any idea on what the problem could be???

My car has 2070000 miles.
My car has an automatic transmission.

A: I would ensure you are getting strong spark...

I would ensure you are getting strong spark with a spark tester (available for a few dollars). Depending on the version of the 4.3L you have, they are known for having problems with the fuel system.

For example, if you have a plastic intake manifold on the center of the engine, they are know for leaking fuel pressure regulators. Regardless, you need to check for fuel pressure with a fuel pressure gauge (also not very expensive). The connection port is on the rear driver side of the engine with a cap on a steel line. The pressure with key on, engine off should be at least 45-50 PSI and should not drop. If the pressure is not there or leaks down I would suspect a bad fuel pump or a bad fuel injection unit (if you have the plastic intake).

If the vehicle runs fine when started, I would suspect the fuel pump based upon experience. Also, have your battery tested.

If you need some help with this, consider YourMechanic, as a certified mechanic can come diagnose your starting issue and make the necessary 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・Save up to 30%

Get a quote

What others are asking

Q: tbi injectors

If there is power to the injectors, and they make an audible clicking noise (that is, mechanically the injectors are functioning) measure the fuel system pressure and be sure that the pressure is within Factory Service Manual specifications. If pressure...

Q: No headlights and high beam indicator light on

Hello. There is not enough information to definitively say what the issue is. Do the headlights not work when they are on normally, or on high beams? If this is the case, the issue is likely pertaining to the power...

Q: INSTALLED NEW ENGINE WHEN BOLTED TO TRANNY I CANT TURN ENGINE BY HAND

Hello - your order of assembly suggests you bolted up the torque converter to the flexplate before the engine was completely snugged up to, and bolted to, the transmission bellhousing. I suspect this has caused the converter to come out...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...