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PeeJ
PeeJ 8/25/2011
2000 Jeep Grand Cherokee Laredo 8Cyl4.7L - Engine
Car roars when started
Whether warm or cold, my JGC V8 roars when it is started. It seems to do so more when it hasn't been started in a few days. If I shut it off for a few minutes and then start it, it seems to do it a little quieter. I feel sorry for my neighbors in the mornings and it is a little embarrassing. Is there any simple fixes? I have replaced the transmission, fuel pump, radiator fan assembly, ujoints, and recently the gas cap and abs brake sensors...none of which would have had any likely affect on the issue I am now attempting to solve. Poor PeeJ...it is always something :(
1 Answer
  • yboy82
    yboy82 8/25/2011
    When does the roaring sound occurs? Is it during idling or driving? or accelerating? Where do you hear it? Is it in the engine compartment or under your vehicle?
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    yboy82
    PeeJ 8/26/2011
    Hi thanks! It is just when it starts it revs up on its own. So, I start it, it roars for a couple seconds (or maybe it just feels long) and then it drops to between .5 and 1 rpm. It is v8 and has tons of miles so I try to just assume it is old and that is what it does, but it is really loud. Not when idling. Only when I first take off does there seem to be a bit of pull. I think the engine. I think it does so alittle more as I approach 65.
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