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Type: Posts; User: gostr

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  1. Replies
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    771

    So I went to the parts store today and got some...

    So I went to the parts store today and got some sea foam. Added half to the gas tank right in the parking lot. I got about half way home (12 miles) and let off the gas and BAM it dropped just like it...
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    771

    I will give the seafoam a try. The only doing it...

    I will give the seafoam a try. The only doing it when the truck is rolling got me:confused::confused: I could be rolling in N for a long time and it still wont go down. I will let you know if the...
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    680

    Checked codes nothing came up. I will try to...

    Checked codes nothing came up. I will try to clean maf today. I just don't get why it only does it when the truck is moving.
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    680

    high idle only when moving

    Hello,

    I have a 99 suburban with a 5.7 vortex with an auto tranny. When I am driving and let off the gas the rpms stay at around 1200-1500 even if I am coasting in N. When I let off the gas to...
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    7
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    771

    I checked for any codes and got nothing. Checked...

    I checked for any codes and got nothing. Checked vacuum leaks and found none. I tried a few things when driving it and here is what I got. When going down the road I slip it into N and the rpms stay...
  6. Replies
    7
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    771

    idel goes up when in gear

    Hello,

    I have a 99 suburban with a 5.7 vortex with an auto tranny. When I am driving and let off the gas the rpms stay at around 1200 for some time before they drop. When I let off the gas to...
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    1
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    1,174

    temp sending unit

    Hello,

    I have a 99 suburban with the 5.7. My tep. gage is not working does not even move. I replaced the sending unit on the drivers side head and still nothing. I noticed there was also a sensor...
  8. 99 suburban 4x4 1500 getting really bad mpg HELP!!

    Hey,

    I have a 99 suburban 4x4 5.7 that used to get pretty good mpg about 15-18 mpg. Now I am down to 8-10 mpg if that. I did a tune up (plugs cap rotor wires) and still no improvement. What...
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    1,299

    locatiom of ignition module

    where is the ing. module in a 99 suburban 1500 5.7 In the dist?? What is the small box on the side of the coil braket?
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    1,269

    no spark on a 99 suburban HELP!!

    Hello,

    I have a 99 with a 5.7 vortec. I checked for spark at the plugs and there is nothing. What should I check first? I was just driving normal and it just quit. First I thought fuel pump but...
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