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    P1351 code HELP

    i recently washed my truck(under the hood) and now its running very rough and giving a p1351 code (Ignition control circuit voltage high) i replaced the ICM, and its still acting up.it feels similar to when my distributor went out,except for now it has kind of a hard start.
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    tail lights not working!

    My tail lights are not working and do not know where to start. Brake lights and blinkers still work,just no tail lightsor plate lights.
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    rought running

    My buddy just picked up an 89 stepside and seems to have some issues. Its originalky a 350 truck but someone replaced it with a 305 out of a monte. We got it idling smooth,but when you try acceleratingit falls on its face like somethings holding it back. I played with the distributor a lil and...
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    rough running when weather changes

    Ive been having a misfire issuefor a year now,with no luck in fixing it. But ive noticed it is much worse when its raining or the weather/temperature changes. Can anyone give me ideas as to what could cause this. I have new AC delco plugs and wires,new duralast distributor,, cap , rotor and...
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    NO HEADLIGHTS!!!!!

    I somehow lost my headlights,my truck is a 1998 1500 wt with daytime running lights.not sure if its a bad switch or a relay??? Has anyone had this issue before?
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    duralast distributor issues

    Last year i installed a duralast distributor in my 98 4.3. A few months after i put that distributor in,my engine started stuttering and surging and throwinga rrandom misfire code. My question is could it be this cheap distributor causing the problem,should i toss it and get a delco piece? It...
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    HELP!!!! random misfire?

    I have a 98 1500 2wd with a 4.3 v6,for almost a year now i keep getting a P0300 random misfire code. Truck runs fine,except under part throttle at highway speed and part throttle at the shift points. It shutters and surges only under part throttle and the check engine light flashes. Truck has...
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    Bad valve seals??????

    I have oil coming into my intake manifold,i replaced the pcv valve and was thinking the only other was thing it could be is bad or worn valve seals. The truck never smokes and it was a small amount of oil.
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    Oil Inside Intake

    Today I replaced my Upper intake,throttle body and fuel metering block gaskets and when i pulled the plenum off I noticed some oil puddled up in the lower intake.I checked for crack and there was none.I pulled out the PCV valve and the spring inside it had very little tension.Could the suction...
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    Cheap Programmer???

    Thinking about buying a decent programmer but don't know anything about them.What all parameters can I change with it? Can I add an HP with one? Can I turn the Speed limiter off? And whats the best Brand to buy? How much will one set me back?
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    69U paint code?????

    Trying to figure out the EXACT color of my 1998 1500.I pulled the RPO code 69U from my glove box and looked it up.It gave me three options:Copper Met. Med Beechnut Met. and some Green color.The color is almost like maroon in certain light but has a copper look in the sun.And has heavy metallic...
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    PROPER wheel bearing adjustment

    I have a 1998 1/2 ton 2wd 1500,that I replaced the front wheel bearings (inner,outter,and seals) and ever since I've had a litte shimmy/shake in my steering wheel. I've always heard to tighten the nut tight and then add an extra 1/2-3/4 of a turn to it,and make sure the wheel still spins...
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    Reoccuring Misfire code on 4.3 Vortec

    I replaced my lower intake gaskets a few months back,also threw in a NEW distributor,cap,and rotor,New Ac Delco Plugs.Engine has a minor hesitation around a certain RPM(only Under Part throttle)Mostly around the shift points.It keeps throwing up a P0300 for Random Misfire.Thinking its the cheap...
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    Intake manifold sucking air????

    Keep getting a P0507 code for Idle air control system higher RPM than expected. Replaced the IAC with a good looking used unit. Idles around 1200 RPM, along with hesitation while cold.I can hear what sounds like an air leak near the rear of the upper intake manifold,could this be the root of my...
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    1500 2wd leveling kit

    What is the cheapest way to lower/level the rear of my 2wd 1500? I know they make the drop shackles but is there a cheaper way
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    GT4 Gears,2wd

    Does anyone know if any of the 2wd 1/2 ton trucks came with the factory GT4 3:73 rearend? im wanting to swap my 3:42 GU6 for some better street performance.All I can find is that rear in 4wd trucks which has a wider housing. I just want a good posi (G80) with better gears (GT4)
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    High idle on 4.3 vortec

    My 1998 4.3 seems to be idling high and keeps throwing idle air control DTC's My IAC valve seemed to be stuck (carbon?) so I just picked up a used one from a junkyard and cleaned it really good.Still idles around 1100 rpm in park and 2000 in neutral.Runs fine sometimes studders off the line.A...
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    4.3 Vortec Throttle body spacer

    Is a throttle body spacer on a 4.3 vortec Useless? Ive heard that it basically is. Would it add any throttle response or low end power at all?
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    4.3 Vortec Marine intake swap

    Did some reading on 4.3 performance mods and it seems the ONLY fuel mods you can do involves switching to the mercury marine style intake. I was wondering if anyone has any insite or advice involving this modification. Seems like quite a bit of labor and money.
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    Bad Fuel pump??????

    my 1998 1500 wont start,Noticed i cannot hear the fuel pump prime when i turn the key on. Pulled the Relay and tested it,showed it was good.hooked an electric test light up to the fuel pump relay plug in the fuse block and it never lit up when i turned the key on.From what i understand it should...
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    4.3 Vortec Longtubes

    Was given a set of heddman longtubes from an older (TBI) 4.3, I believe they should bolt right up with new o2 bungs. they were s10 model and my truck is a 1998 1500 2wd 1/2. How hard would it be to put these on?
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    gas gauge going crazy

    My 1998 Chevy 1/2 ton 2wd has an issure with the gas gauge.in park or standing still it bounces frome full to empty constantly, but while driving it seems fine.It is also accurate on my fuel level above 1/2 tank, anything under that is a guess. Ive been told there is an anti-slosh module in the...
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    4.3 Vortec Cheap Mods

    Im Looking to add some Cheap/free Horsepower to my old V6 4.3 (i know not to expect much).I have already done the Debaffled Throttle blade mod, descreened my MAF, Deleted the vortec silencer box. A friend gave me some Heddman Longtube headers that came off and older (TBI) 4.3. Im pretty sure...
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    4.3 Vortec DTC codes,hesitation issues

    Hello I am new to this forum and am seeking much needed advice.My truck is a 1998 Chevy c1500 1/2 ton 2wd with the L35 4.3 Vortec V6 with 200,000 miles . I recently did the throttle blade baffle mod aswell as descreened the MAF. Noteced great low end throttle response,but was driving earlier and...

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