1994 Chevy S-10 carberation and/or computer sensor

TASKA_11

MEMBER
1994 CHEVROLET S-10

Other Category problem
1994 Chevy S-10 V6 Four Wheel Drive Manual 150, 00 miles

the truck has a small jerky motion when driving normally, but under load (up hill) expecially in 5th gear, it cuts out for a second like the fuel is stopped to the jets in the throttle body (like a hic-op), and it doesn't have the power it should have with this 4.3 engine due to the jerky feeling. It also happens when taking off in a lower gear, but not quite as bad but that is probably from not being so dramatic as higher speeds.

3 Replies

2CARPRO JACK

MECHANIC
11,533 POSTS

Dos it bog down like it is running out of gas? Or does it cut out like a switch is being flipped? Probably ignition related since it does it under load. When was the last tune up? Did you use quality parts?

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Sunday, December 2nd, 2007 AT 8:11 AM

TASKA_11

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2 POSTS

No it acts like a switch is flipped for 1 sec, and then it runs normalls, but with the small jerky feeling, like one can tell its not getting the fuel to run at peak effeciency. Also when taking off from a stop, the gas has to be feathered just right, or it jerks, like "Kachunk" and runs like normal. Every thing seems fine just driving with a lack of fuel. Things get worse when its warm. The tune-up is fine, and I only use quality parts from napa.

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Monday, December 3rd, 2007 AT 7:15 PM

2CARPRO JACK

MECHANIC
11,533 POSTS

Fuel usually is like a bog, whereas electrical is more like a switch (fast). Is or has the check engine light been on? As long as you didnt use Bosch Platinum plugs or Champions. If you can get a manual fuel pressure gauge it would help pin-point the problem. Might even be the module or pick-up coil in the distributor shorting when they get hot

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Tuesday, December 4th, 2007 AT 7:21 AM