Question about 1999 Chevrolet Silverado 1500

2 Answers

Hesitation Chevrolet Silverado, 4.8L, 1999. Starts okay. Transmission in gear, engine hesitates for 10 seconds and up to 1 minute. Let idle and it clears up. If you stop motor, it may do it again. After clear up, it runs fine until you stop motor again. Fuel pump has been replaced, symptoms still the same. Test pressure on pump, all okay. 180,000 km.

Posted by on

  • derek58703 Sep 12, 2008

    I have the same problem with mine, same year exact same instances. Just took it to the dealer and of course they never experienced the problem. I hope someone knows where we can turn



2 Answers

Replace your crank angle sensor.

Posted on Oct 22, 2008

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 4 Answers

I had the same symptoms. First off, how long since you have replaced the spark plugs and wires? I know they are supposed to be 100,000 mile life but not in my case. Here is what I did to correct my issue (note: it did not do it all the time, only occasionally and seemed worse when it is cool in the mornings)
1. Replaced Spark plugs, the issue got better but did not go away.
2. Took throttle body off of truck and cleaned all the carbon from around the buttefly with toothbrush and carb cleaner. Took idle control module out as well and cleaned carbon as well, issue got even better but did not go away.
3. Replaced GM spark plug wires, only 55,000 miles on them, one at a time (just to determine which one was causing the issue if it was a plug wire). Cylinder number 6 wire was bad. So, replaced plug wires and wa-lah, problem solved. Not saying that is your issue, but it corrected mine.
4. While I was at it, I replaced O2 sensors b/c I did have one that was lazy according to the computer.
Truck now has 231,000 + miles and runs like a champ.

Posted on Sep 25, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2002 Chevy silverado, at speeds of 60+ mph, it feels like the transmission slips or it sputters(hesitates), but only at high speeds

Are you certain that it is the transmission and not the engine misfiring? I would recommend scanning your onboard computer network to BEGIN proper diagnosis.

May 20, 2012 | 2002 Chevrolet Silverado 1500

1 Answer

My car is hesitating when I accelerate when I first start it after sitting idle. I have been told it is the 1,2 shift cylanoid. What is this, how much to repair, how serious, I have taken it in to the...

What is hesitating - the engine or the transmission?

When starting the car and putting it in gear, if the transmission shifts immediately into first gear and then shifts smoothly from first to second gear, I doubt its a transmission problem. However, if that isn't the case, you will probably need a new or rebuilt transmission ($1500+).

Engine hesitation can be due to a lot of things related to the fuel system that won't necessarily show up on a code reader - for example, dirty throttle body, fouled IAC (idle air control) motor, fouled EGR valve, etc.

Jun 30, 2017 | 2003 Pontiac Grand Prix

2 Answers

Engine bucks and hesitates after first started

Check the fuel pressure it could be the fuel pressure regulator. pressure sube be around 50psi.

Apr 28, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

Engine hesitates on excelleration and idle speed changes by itself

Have tried changing the spark plugs and cleaning the fuel injectors

Dec 11, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

1999 chevy truck 1500 is sluggish and hesitates

sound like your catilitic converter is plugged up.

Jul 27, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Hesitation problems and engine loping at idle

try timing i set mine at 4 degrees btc,dont forget to unhook your distributor bypass located behind your distributor

Mar 25, 2009 | 1988 Chevrolet C1500

1 Answer

Hesitates and sputters after driving a few

it may need some fuel rail conditionar and if that does not work it may need a new fuel rail regulater

Feb 20, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

99 S-10 Engine hesitates only when warm

If it has miss and hesitation only warm not cold you may have a coolant temp sensor problem . but if the service engine soon light is off i would chek ignition system(plugs, wires ,boots).most likely one of the cylinders missfires when hot.

Jan 27, 2009 | 2001 Chevrolet S-10

Not finding what you are looking for?
1999 Chevrolet Silverado 1500 Logo

275 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

77202 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides