bad idling and gas mileage

20

Asked by 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

5

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!!

okay...could be many things, but we will start with an idle air control...put one of these units in there and report~

4 of 4 people found this helpful.

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-

5 of 5 people found this helpful.

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~

3 of 3 people found this helpful.

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~

5 of 5 people found this helpful.

No "mark helpful"? all of these solutions could provide excellent performance~ what ya gonna do with a drunken sailor?

3 of 3 people found this helpful.

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!

2 of 2 people found this helpful.

roota...voota...zoot.~

1 of 1 people found this helpful.

...a rabbit.~

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,323 nationwide S-10 listings starting at $1,999.

ZIP:

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,360
#2 John Saffrahn
John Saffrahn
Reputation 1,000
#3 Trebor66
Trebor66
Reputation 990
View All

Related Models For Sale

Used Ford Ranger
168 Great Deals out of 5,599 listings starting at $1,200
Used Chevrolet Silverado 1500
1,966 Great Deals out of 183,481 listings starting at $1,495
Used GMC Sonoma
4 Great Deals out of 436 listings starting at $1,488
Used Toyota Tacoma
545 Great Deals out of 43,390 listings starting at $1,995
Used Ford F-150
2,181 Great Deals out of 194,801 listings starting at $290
Used Dodge Dakota
124 Great Deals out of 3,817 listings starting at $1,500
Used Nissan Frontier
339 Great Deals out of 21,165 listings starting at $1,250
Used GMC Sierra 1500
805 Great Deals out of 68,894 listings starting at $1,800
Used Chevrolet Blazer
1,185 listings starting at $1,495
Used Dodge Ram 1500
419 Great Deals out of 10,963 listings starting at $1,000
Used Chevrolet C/K 1500
871 listings starting at $1,950
Used Chevrolet Camaro
352 Great Deals out of 31,424 listings starting at $2,500

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.