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Fuel or Carborator issues

Is there an easy way on a 1986 chevy K10 4x4 Elderblock Carborated 350 to find out of i have a cloged fuel line or a faulty fuel pump cause i dropped the tank due to a torn fuel hose and bad tank clamps. Its all connected back together and it wasnt pumping any fuel through the fuel hose to the carborator, so i changed the manual fuel pump and the battery to rule out the distributor or starter plus the battery was 8 yrs old. ive also tuned the carborators air/fuel mixture to 4 1/2 turns and it would run smooth for around 30 sec to a min but sputter and die, or if i pushed on the throttle it would die right away. I also have a timeing issue but i dont think it would effect the fuel line or pump issue.

Posted by andrew_gale0 on


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Thomas Perkins

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  • Chevrolet Master
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If your timing is off,it will effect the fuel getting to carb.Your plugs may be fouled.

Posted on Aug 29, 2012


5 Related Answers

SOURCE: 1986 toyota pickup starts wont stay running

It seems there is some kind of air entering the carburator where its not required to do so or the idling soleniod switch is malfunctioning, thus not allowing the air to enter for the engine to idle .
Also recheck the vaccum pipes if they are correctly refitted per the schematics under the hood.More over remove the idling switch and blow some air to the hole probabley theres some kind of obstruction over there .

Good Luck.


Posted on May 06, 2009


Michael Masters

  • 6784 Answers

SOURCE: fuel pump location and replacement

You are looking for the constant control relay module- ( CCRM ) see below. The pump will be located inside the fuel tank.Most of the time , its the pump and not the relay but, it wouldn't hurt to check the relay out. Teh relay is housed in the CCRM. Its located behind the engine coolant reservoir.


Posted on Mar 20, 2009

robert bishop

  • 135 Answers

SOURCE: I have a 1989 chevy Blazer 4.3 auto 4x4 Turned off

check your coils if you pull a plug and put it back into the wire, turn over to see if spark, if not coils or dis. module. hope this helps you, thanks robert b.

Posted on Jun 28, 2009


Philip Long

  • 1486 Answers

SOURCE: 1992 Suburban wont start, but sounds like it wants to

clean the jets in the carb.Your not getting fuel.Also check the timming has not slipped.good luck hope that was help full.

Posted on Jul 24, 2009


Michael C. De Vito

  • 1970 Answers

SOURCE: 1995 maxima GL. I've noticed that the car has

mcdevito75 here you should first start out with a complete tune up, if your car hasn't had one in at least 1 year then you work from there. Your problems could be many things and to replace 1 at a time will cost more than a tune up in the long run, much more.

Posted on Jul 10, 2010

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Faulty carborator

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I have a 1986 chevy K10 350 carberated that has a fuel line problem from the mechanical fuel pump up to the carb. its not pumping any fuel up to it, i've replaced the mechanical fuel pump and the

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Another method I have seen is using a vaccume pump to register preasure, there are some video's out there to do this method and it can help you fine tune it a little more then one can just by ear. I hope this has helped you or atleast set you in a direction to getting the issue solved.

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I hope this information is useful and aides in the success of fixing this issue.

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