Engine hard to start, runs rough then engine light on after 10 minutes or when warm then idle picks up...
35

Asked by satguy Sep 26, 2014 at 08:49 PM about the 1993 Chevrolet C/K 2500 Silverado Extended Cab LB RWD

Question type: Maintenance & Repair

Hello,

I I have a 1993 k2500 4x4 5.7 liters that I bought new.  3 weeks ago driving it, the engine lite came on (never done this before) but it drove just fine.  Next day when I started it , the engine ran really rough to the point of stalling.  But after it warmed up I guess the engine lite came back on, it started to idle normal and kinda run rougher than usual.  Replace fuel tank, fuel pump, fuel filter, spark plugs and wires and air filter with an oil change and a new muffler.   Still the same.  Any ideas   Thanks Gilles

4 Answers
35

satguy answered 10 years ago

Here is the code finally 33 Thanks a million, Gilles PS I read the code, but I don't understand what it means...

Mark helpful
10

Danp129 answered 10 years ago

I don't know what the code is, but a mass air flow (MAF) sensor can cause rough idle, hard starts, loss of acceleration, poor fuel economy, and other issues you'd expect by having an improper air/fuel mixture. I have fixed two vehicles by simply using Chemtool to clean the sensor by spraying the wires and letting dry for 15 minutes. Do not touch the wires with your hands or attempt to clean them with a Q-tip. It is my opinion that you should clean it every 50K miles, and if you have an aftermarket air filter that you spray oil on, you should clean it every 20-30K. Good luck!

Mark helpful
35

satguy answered 10 years ago

turned out to be a vacuum leak (hose that plugs in the MAP) works great now. Thanks everyone

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

C/K 2500

Looking for a Used C/K 2500 in your area?

CarGurus has 1 nationwide C/K 2500 listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Chevrolet C/K 2500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    680
  • #2
    Paul
    Reputation
    310
  • #3
    Gene Arnett
    Reputation
    280
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet C/K 1500
4 listings
Used Dodge RAM 2500
27 listings starting at $4,000
Used GMC Sierra 1500
127 Great Deals out of 6,857 listings starting at $3,975
Used Chevrolet Suburban
4 Great Deals out of 406 listings starting at $12,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.