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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
  • 14,850 Answers

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

Posted on Aug 29, 2012

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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.

Knight.

Posted on May 06, 2009

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localwonder

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.


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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

pippall

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

mcdevito75

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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1 Answer

Faulty carborator


Check fuel filter/filters or just replace em than try it if nothing its carb time or injector issues or bad fuel try gas line/tank water remover iso heat is better if nothing still the carb needs a rebuild or the injectors are to blame

Jun 30, 2014 | 1988 Dodge Dakota

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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


By automatic I'm assuming you mean electric. Are the hoses still plumbed into this pump and then to the mechanical pump? If so, disconnect from the electric pump and plumb together with a barbed fitting. It's a possibility that the electric pump is locked up and the mechanical pump can't pull fuel through it. Also, is the mechanical pump actuator rod in place behind the pump? This rides on the cam to actuate the pump.

Sep 07, 2012 | 1986 Chevrolet Chevy

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Fuel line clog


make sure your lines arent crossed up.

Aug 28, 2012 | 1986 Chevrolet Chevy

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1963 CHEVY SS w/396/360HP. Wan't start after getting hot. New starter twice. Starter wan't energize.


is it carborated or fuel injected, most fuel injection systems have a automatic shut off if the engine is too hot, make sure the engine is not over heating or possibly the fuel injection sensor could be faulty

Sep 11, 2010 | Chevrolet Impala Cars & Trucks

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Jeep cj7 stock 4.2 fuel injected or carborated


It should be an electronically controlled carburetor.

Apr 02, 2010 | 1986 Jeep CJ7

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1997 chevy silverado 1500 350 vortech, new fule pump not working


before you drop tank again, check fuses & relay.then disconnect fuel line @ filter turn key to on position should hear fuel pump run and get gas stream out of line. if no flow from line new pump faulty be sure & remove negative battery cable first good luck.

Jun 04, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Smell of gas coming out of exhaust....running rich


If the vehicle is still running original systems then you would need to take it to someone with 1 of the hand programmers to readjust the fuel system settings. If this vehicle has been converted over to or originally was a carborated There are typically 2-4 mixture screws depending on the unit. They will be infront of and behind the carborator. To adjust a carborated you will typically take a flat head screw driver and turn all the way to the right till they are only "finger tight" Once there, note a starting point and from there VIA each screws individual starting point. Turn them all 1 1/2 turns, this will place the carborator at the factory starting position. From there you can then start the vehicle and while it's idleing you can begin to adjust all mixture screws by turning 1/2 a turn till the vehicle looks, sounds, and smells like it is running correctly.

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.

Apr 09, 2009 | 1986 Chevrolet Camaro

1 Answer

89 oldsmobile 88 won't start. Drove it for awhile and then turned it off. Next time it wouldn't start. I smell gas so I don't know what is wrong.


Is it Carborated?

If so, you may have a fuel leak at the intake/carborator gasket. Pull the carb, and replace the gasket. Also make sure that the air/fuel mixture is set right -

If it is fuel injected: you may need to replace the fuel pump relay, fuel pump, and you may need to have the battery, alternator checked. make sure the starter connections, and battery terminals are secure and free of debris, corrosion, acid build up as these will limit or withhold current.
I hope this information is useful and aides in the success of fixing this issue.

Apr 01, 2009 | 1989 Oldsmobile Delta 88

2 Answers

Fuel


the fuel filter sounds like the problem, are you sure its carborated not fuel injucted because fuel injuction has a regulater for the fuel if it is stuck open you would pump gas to the fuel rail and back to the fuel tank

Dec 23, 2008 | 2000 Oldsmobile Bravada

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