bad idling and gas mileage
Asked by wizard13 Jul 16, 2013 at 12:26 PM about the 1998 Chevrolet S-10 2 Dr LS Extended Cab SB
Question type: Maintenance & Repair
I have a 98 chevy s10 and everytime im doin about 45mph or 50mph my truck will start to idle weird it feels like misfiring, my check engine light is not on but I have replace both spark plug and wires, throttle sensor, fuel filter and also did a diagnostic and it showed nothing guys sayed it could be camshaft sensor but my truck runs great only bad is between 45 and 60mph and 150 miles off a full tank of gas
9 Answers
Darrylsports answered 4 years ago
Sounds like a major tuneup, too much air getting in when flooring the peddle! My opinion only a back alley mechanic would find it sometimes before a shop!!
migration_judge_roy answered 4 years ago
okay...could be many things, but we will start with an idle air control...put one of these units in there and report~
migration_judge_roy answered 4 years ago
The fuel pressure regulator if hose is cracked will not issue full fuel pressure and will be sucking air leading to high-idle/bad performance...this is a non OBD-II device which would not be picked up by the onboard diagnostics~ bad moojoo man-
migration_judge_roy answered 4 years ago
back to basics...make sure the battery is newer than five years old as will start playin' hell with your alternator...the 1/0 cable off the battery as it attaches to the chassis should be wirebrushed clean...what you don't know is that it actually 'welds' this connection with every use and shared the same ground with the dainty electronics of the ECU....yes combine a 300 amp load with a 120mA ground....smart....not~
migration_judge_roy answered 4 years ago
The EGR (exhaust gas recirculation) valve is supposed to engage when combustion temperatures get too hot, and upon decelleration...yours could be disassembled and cleaned with bra-kleen~
migration_judge_roy answered 4 years ago
No "mark helpful"? all of these solutions could provide excellent performance~ what ya gonna do with a drunken sailor?
migration_judge_roy answered 4 years ago
I'm sixty points away from making GURU #3 spot...you're holdin' me up, man~ I give good answers and get not even a howdy do from you....shame and waste of effort...not to complain...could you give a guy a break....I'm here workin' it for you....I'm never coming to this restaurant again!
Your Answer
Related Questions
-
bad idling and gas mileage 9 answers
I have a 98 chevy s10 and everytime im doin about 45mph or 50mph my truck will start to idle weird it feels like misfiring, my check engine light is not on but I have replace both spark plug and wires...
1998 Chevrolet S-10 2 Dr LS Extended Cab SB
-
Maintenance & Repair
-
Really bad gas miliege,, please help 9 answers
I've got a 1999 Chevy s10 2.2 liter automatic. It's getting around 190 miles to the tank. I've replaced fuel filter, air filter, coil packs, the number 1 injector, the map Sensor and the plugs twic...
1999 Chevrolet S-10 2 Dr LS Standard Cab SB
-
Maintenance & Repair
-
why is my 1998 S-10 2.2 auto bog down very bad when I try to punch the gas. I just install a very good battery and have one on those innova 3100 abs models and it read that ther are no stored data or 3 answers
my S-10 will bog down when I try and punch the gas. My inniva scanner says no stored data or freeze frame data either. It was running fine and then when my wife was coming home from work it started up...
1998 Chevrolet S-10 2 Dr LS Standard Cab SB
-
Maintenance & Repair
-
when i hit the gas on my s10 it will rattle real bad like marbles in the engine, do you know what that might be? 1 answer
it kind of sounds like the exhaust is loose but its not. it just sounds like something is loose but ive gone through about the whole thing and i can not find anything loose.
1995 Chevrolet S-10 2 Dr LS Standard Cab LB
-
Maintenance & Repair
-
have a 2.2 engine in 99 s-10 , just replaced it and still have same problem of no gas getting to cylinders. good pressure , and good combustion, have replaced fuel filter and pump, good mechanic doing work.could it be computer? help 5 answers
just replaced engine in s-10 , can not get gas to cylinders, good fuel pressure, combustion, new fuel pump and filter. have done everything with good mechanic. could it be computer? please help
1999 Chevrolet S-10 2 Dr LS Extended Cab SB
-
Maintenance & Repair

Looking for a Used S-10 in your area?
CarGurus has 957 nationwide S-10 listings starting at $950.
Shortcuts
Search Chevrolet S-10 Questions
Chevrolet S-10 Experts
-
#1Andrew OlsenReputation2,770
-
#2John SaffrahnReputation1,100
-
#3Trebor66Reputation1,080
Related Models For Sale
Used Cars For Sale
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.