Question about 1998 Chevrolet K1500

1 Answer

When idleing once in a while it starts running rough and shaking truck, 1998 k1500 350. no engine light. when i gige it gas it smooths right out. engine seems like its a little louder than normal.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Chevrolet Master
  • 75,822 Answers

Here is the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.

To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, NEVER USE CARB CLEANING SPRAY, IT DESTROYS THE ANTI-STICK TEFLON COATING, spray it into the air intake through the throttle body of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a professional.

Posted on Feb 13, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 3600 Answers

SOURCE: I have a 1994 chevy k1500 preignition knock

open the intake manifold by removing the air cleaner and or hose look on the back side of the plate to see if there is varnish and gum if there is you need to do a top engine clean, You must understand that running that kind of gas will cause varnish and carbon buildup on the pistons and valves. This causes the knock sensor to not to be able to adjust for compression change. It can only advance the timing 50% once the carbon build up is to much it will start knocking. If you want to receive instructions on how to fix this then rate me post a comment and I will give you the two page answer on how to do this. Unless you want to keep buying parts. your choice. I will no longer post it here as I see some think they can just take my answers and copy them.

Posted on Aug 31, 2009

  • 8 Answers

SOURCE: 88 silverado 1500 surges at idle and runs rough above that.

may be the egr valve

Posted on Aug 23, 2008

  • 341 Answers

SOURCE: 1989 chevy 350 automatic, white smoke

white smoke is antifreeze try checking the compression

Posted on Nov 08, 2008

  • 3 Answers

SOURCE: my 1998 chevy truck has a rough idle and kind of

I would try adding some fuel injector cleaner and replace the fuel filter. My truck used to do this when I first got it, and those seemed to help mine alot. If you havn't tuned up the engine for awhile, look at the spark plugs and make sure they aren't worn along with the distributor and wires, just for good measure.

Posted on Sep 23, 2009

  • 12 Answers

SOURCE: Rough idle 1994 chevy pick up k1500 4x4

I had a 96 GMC 1500 with a 5.7 ltr. It would idle rough, especially on start up. After replacing everything under the sun, it turned out the ECM (computer) was shot. I found a used one and plugged it in and it ran fine. I think I paid 50 bucks or so for it. If you know someone with a truck like yours, plug theirs in and see if it fixes it.

Posted on Apr 19, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

N80 start


You have to find the reason the check engine light is on. This will aid in diagnostics. Also, are you buying fuel at the same place both times?

Apr 23, 2014 | 2007 Hyundai Elantra Limited Sedan

1 Answer

98 cadillac sls idling rough


try your ful injecton you mite have a injector clogged up try seafome it mite work cant hert to try

Apr 20, 2013 | Cars & Trucks

1 Answer

May 30, 2010 - MY TRUCK IS A CHEVMY TRUCK IS A CHEV Z71 1998 WITH 5.7 ENGINE THE WHOLE STORY IS THIS ...IT STARTED RUNNING ROUGH WHILE I WAS DRIVING HOME ON THE INTERSTATE IT WOULD NOT TAKE GAS BUT WOULD...


If you're smelling fuel, it's not getting burned. Something wrong with inginition. Examples, timing is off, need tune up, wires are wrong on truck, and more.

May 30, 2010 | Chevrolet 1500 Cars & Trucks

2 Answers

1998 Audi A4, engine shakes/runs rough sometimes


sounds more like a air control /sensor but its difficult to diagnose from spain without seeing the car ,sorry for being able to give a quick fix

Aug 22, 2009 | Audi A4 Cars & Trucks

1 Answer

Rough idle engine ticking


check for a lose spark plug lead or cracked elecrod insulation on spark plug

Jul 09, 2009 | 1990 Isuzu Spacecab

1 Answer

After washing truck check engine light came on.


let up hood let it idle to dry watch the check engine light . it should be okay.let it idle it will smooth out.

Apr 12, 2009 | 1990 GMC Sierra

1 Answer

Fuel system


Check the fuel system, chenge fuel filter. clean the fuel tank.

Oct 16, 2008 | 1994 Toyota T100

2 Answers

2000 Nissan Sentra rough idle


a rough idle/high idle is indicative of a malfunctioning TPS(throttle position sensor) this is located on the throttle body ,is attached with (2) screws/bolts to the throttle body housing right off the butterfly shaft. it has either 2 wire or 4 wire plug. the replacement part can be purchased at locale auto parts store. I would also agree that a full service and tuneup be done. this will help with performance and will increase the fuel efficiency. please rate this...thanks

Sep 25, 2008 | 2000 Nissan Sentra

1 Answer

I have a 1998 Ford Ranger that when I start it up runs a little rough for about 2 minutes then has a good smooth idle. When I step on the gas there is no power like it wants to stall. It only goes to a...


A possibility:

I have a 1998 Mazda B2500 (same truck/engine/trans). A few years back, I was getting a rough idle a few minutes after startup, and my tachometer would fluctuate wildly. This progressed to the point where I was stalling out randomly while driving. With the help of my local mechanic, I ended up diagnosing it as a mass airflow sensor error. My best guess is that oil or water had gotten into the intake. Whatever the cause, after replacing the sensor (saw them for $60 on eBay, right after I paid $300), it's been running smoothly since.

P.S. -- I don't think this is a mileage/wear and tear issue so much as it is bad luck. I only had 13k miles on the truck at the time.

Aug 05, 2008 | 1998 Ford Ranger SuperCab

Not finding what you are looking for?
1998 Chevrolet K1500 Logo

494 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8210 Answers

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

Answer questions

Manuals & User Guides

Loading...