Skip the auto shop - Our mechanics make house calls

Q: Engine is hesitating during startup - 1989 Chevrolet K1500

asked by on

I have a 89 silverado. When I start it in the morning it will turn over for about 5 or 6 second before it fire up. Then it will die the first time. The second time I start it,it will surge about 6 or 7 times like it is going to die but will smooth out. Then when I drive it, it sputters and doesn't have but maybe half of its power. It seems to clear out a little at higher rpm but then does the same thing when it shifts. It also seems to get better as it warms up but it still ain't exactly right. Also the engine light will come on some of the time but not always. I have replaced the iac,egr,plugs and wires,fixed vacuum leak,new throttle body,and done away with the convertor. Any suggestions?

My car has 160000 miles.
My car has an automatic transmission.

Hi there. Check the static electronic timing with your ignition system. It seems as if the ignition timing is retarded and needs to be advanced. If your distributor is maxed out for advancement and will not move anymore, you will need to pull out the distributor and turn the distributor housing back one tooth, and then adjust the timing.

Do not turn the rotor in this case and mark it before removing the rotor so you will not have to re-time the engine. If you need further assistance diagnosing your vehicle, then seek out a professional, such as one from Your Mechanic, to help you determine why the engine is hesitating and suggest any needed 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: Lights/ brights won't come on

Anytime you add aftermarket components, you have now become the engineer. There is only so much I can do to help you is such a situation because you have now made changes I cannot see, test, or reference from experience...

Q: My 89 ford ranger runs everything works but it will shut off and will not start again for day or two. Everyone says eec power rela

The problem sounds like the fuel pump or fuel pump relay is bad. If you turn on the key and the check engine light is on then the EEC relay is good. You should hear the fuel pump in the...

Q: Truck turns over but don't start

Hi there. In many cases when a crankshaft position sensor issue is found, the actual culprit is the wiring harness that has been damaged and needs to also be replaced. If this was not completed when you replaced the sensor,...

Related articles

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 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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.