Question about 1986 Chevrolet C1500

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My truck wont go over 35

My truck wouldnt run today was running fine when i parked it yesterday i drove home in freezeing rain home then and tempture hasnt warmed up it started this morning but wouldnt go over 35 i went about 5 miles down road turn around went back home

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Distributor cap wet inside. Change cap and rotor. Possible plugged catalytic converter if running good when cold, but not when warmed up. Check dist. cap first. Easy when loosening bolts on cap. Tend to snap. Don't rush. Work caps bolts back and forth a little at a time till loose.

Posted on Jan 16, 2013

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Could be a lot of things I would start here. If the engine is shaking at idle or not it maybe the spark plug wires. easy way to check start the truck take a spray bottle and spray a mist on the wires to see if the truck runs worst make sure you stand back while doing this so you don't get shocked.

Posted on Jan 16, 2013

  • Anonymous Apr 17, 2017

    This could be caused by a partially blocked fuel line. A bit of water in the fuel could have frozen in the line and be limiting the amount of fuel getting to the engine. At idle in the driveway first check if fuel pressure is up to spec. Next you need to monitor pressure while driving under load. I have used a fuel pressure gauge with a long hose so I could route it up to the windshield and use the wiper to hold it down. Then drive while watching pressure gauge. If the pressure drops drastically while attempting to increase speed you either have a weak/bad pump or a restriction somewhere. If you suspect a frozen fuel line you have to get the car into a garage to warm it above freezing and add a can or two of 'Dry Gas' to absorb the water.



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SOURCE: stalling truck

Sounds like it could be a number of things Coil breaking down,ignition module breaking down or a failing relay.Could be ignition relay or fuel pump relay.The relay is the quickest,easiest and cheapest option to try first.

Posted on Oct 20, 2008

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Just a suggestion but you may want to try putting a bottle of dry gas or octane booster . You may bad gas or possibly water.

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it sounds like the themostat has stuck open. i would change the themostat and also make sure that there is no debri caught in the grill . make sure the plow is not blocking air flow

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SOURCE: chevy s10 wont turn over

does it click ?

Posted on Jan 26, 2009

SOURCE: 97 lumina car runs great. today I ran it and when

No it doesn't have fuel. What test did you do.? The fuel filter is dirty or the fuel pump is mechanically bound once in awhile.

Posted on May 05, 2010

Testimonial: "Once I got it homeI have been running it and then turning it off and restaring and running it. I have done this about 5 times and took it about quarter mile and back. There hasnt been a problem and now Im worried to take it further thinknig it might stop again."

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