Question:
I have a 1997 Chevrolet s-10 (s10) 2wd ext. cab w/ the 4.3L V6 vortec engine and manual transmission. The truck starts easily, but it cuts out when driving at constant speeds. It seems fine during acceleration and at idle, other than some clanking sounds (not sure if this has anything to do with the problem or not), but as soon as I try to maintain a constant speed, it starts to hiccup every couple seconds. I am not experienced in auto repair, but research points me towards fuel pump and/or filter. Is there a way to diagnose this without fancy tools? A fuel pump is a lot more to replace than just the filter, so is there a way to differentiate which might be bad, if either? Other ideas?
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Thanks so much.
Answers:
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Perhaps there is a short somewhere and it is causing this problem. A good mechanic will be able to tell you what it is. but could also be something with the timing also. I would choose the cheapest route first. Then work up. !sound like detination you may have to retard your timeing
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i own a repair shop,and there is no way to diagnose a bad filter ,,you just have to replace it,and that's a cheap part anyway,,but id try that first,,if that don't help it none at all id try and see if its in time,,if it has a distributor in it ,it may be way out of time,,this will cause it to do this also,other than that all you can do is check everything like the plugs and wires ,and go from there ,these kind of problems are hard to diagnose and you never know what will cause them,,good luck,i hope this help,s.Is "green fuel" the answer for high price oil?
Start out with changing the filter first, then if that dont work, then yes, you should change the fuel pump. If its never been changed, it is probably due for a new one. If its fuel injected, try puttin a bottle of the cleaner in a tank of gas. Good Luck!My rear cylinders are leaking. How vital is it that I fix them right away?
I agree with replacing the filter first, it's the cheapest fix for now .If that doesn't fix the problem , then before you replace any parts go to any auto parts store and purchase a fuel pressure gauge.
Get the cheapest that they sell , hook the hose of the gauge to the fuel pressure port located on top of engine (left rear) if you're looking at the engine from front of truck it's (right rear) , it usually has a plastic cover (looks like tire valve cover) .start engine ,you should have about 60psi +/- if pressure is good drive the truck
with gauge attached & watch pressure when it acts up. if pressure drops bellow 50psi -45psi when you accelerate that means the pump is bad. also you didn't mention if the check engine light is on. if it is you need to diagnos that first . good luck
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