check engine light toruble, rough idle


Asked by Jul 11, 2015 at 02:21 AM about the 1998 Chevrolet C/K 1500 Cheyenne Extended Cab SB

Question type: Maintenance & Repair

I have a 98 chevy c1500 and the check engine light is on I took it to a shop and they
scaned the code and it said it was the cam and crank shaft position sensor. so I
replaced both of them now the light is back on and I had it checked again and now it
says it is just the crankshaft positon censor. the light goes on and off all the time and
if I leave the car setting over night and try to start it the next day it has a very rough
idle it comes so close to stalling its not even funny. Then when I put it in drive and
press the gas it does not have much power at all it will run like crap for about 15 min.
then its fine and acts if there is no problem at all I have no clue what it is I replaced
the spark plugs and wires and distrubutor cap and changed the oil and air filter. Also it
feels like it has a small miss to it. Any help is despratly appreciated thanks.

2 Answers


Have Idle Air Control Valve cleaned or replaced and clean Throttle Body with throttle body cleaner spray. Add fuel injector cleaner to gas tank.

Andrew Olsen

check to make sure your timing chain hasnt slipped. The cam/crank correlation code can come up for that. put the crank at tdc and see if the ignition rotor is pointing to number 1. When asking questions having the actual code (ex:p0304) will help us alot with diagnosis

Your Answer

Add photo

Related Questions

  • Rough Idle/Stalling 4 answers

    ***NOVICE*** Hey I've got a 93 K1500 5.0 V8. Started idling rough about a week ago, would sometimes stall at stop lights. RPM would drop as low as 500. Replaced the fuel filter at the suggestion of...

    1993 Chevrolet C/K 1500 Silverado Standard Cab SB 4WD


    Maintenance & Repair

  • Idleing rough 2 answers

    I have 1999 chevy silverado with 5.7. Motor runs smooth until you come to a stop. The idle drops to barely running and is rough. Take off and runs well. Why is it running rough at a stop

    1999 Chevrolet C/K 1500 LS 4WD


    Maintenance & Repair

  • 97 Chevy C1500 idles great, runs rough when put in gear 10 answers

    I've got a '97 C1500 that's been running great for me for the past 6 months. Just the other day I drove it down to my folks place and when I pulled in the driveway the engine started running rough. ...

    1997 Chevrolet C/K 1500 Cheyenne Standard Cab Stepside SB 4WD


    Maintenance & Repair

  • What are the best spark plugs to prevent rough idle for a 1998 Chevrolet silverado 5.7? 11 answers

    1998 Chevrolet C/K 1500 Cheyenne Extended Cab LB


    Maintenance & Repair

  • rough idle 2 answers

    I have a 2001 chevy S10 that on initial startup after sitting overnight it runs rough and the engine vibrates! after driving a few miles the symptoms disappear and it runs fine. I suspect that it is a...

    2001 Chevrolet S-10 2 Dr LS Standard Cab LB


    Maintenance & Repair

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,580
#2 John Saffrahn
John Saffrahn
Reputation 2,260
#3 Rowefast
Reputation 1,190
View All

Related Models For Sale

Used Chevrolet Silverado 1500"
2,466 Great Deals out of 143,822 listings starting at $1,995
Used GMC Sierra 1500"
1,020 Great Deals out of 56,299 listings starting at $2,499
Used Ford F-150"
3,183 Great Deals out of 216,374 listings starting at $1,900
Used Chevrolet C/K 2500"
279 listings starting at $1,995
Used Dodge Ram 1500"
517 Great Deals out of 13,812 listings starting at $995
Used Toyota Tacoma"
642 Great Deals out of 30,203 listings starting at $2,850
Used Chevrolet S-10"
11 Great Deals out of 1,819 listings starting at $1,749
Used Chevrolet Tahoe"
1,056 Great Deals out of 36,219 listings starting at $1,700
Used Chevrolet Camaro"
812 Great Deals out of 38,796 listings starting at $2,650
Used Chevrolet C/K 3500"
301 listings starting at $5,600