Search results

  1. G

    P0304- Drawing Straws Now

    I have an OBD Bluetooth scanner that I use to pull codes... I'll see if there's an app I can use to log data. Truck doesn't use enough coolant for me to notice, nor does it use oil. I should mention it is at about 202k miles.
  2. G

    P0304- Drawing Straws Now

    As per previous posts, am still chasing a cylinder 4 misfire. This happens when I am pulling up long hills and is way worse under load i.e. with passengers or a trailer. I wanted to go into a bit more detail and see if anyone could help. Started noticing going uphill- would get a random misfire...
  3. G

    Weird Cooling Issue

    Interesting- actually had a compression test done earlier this week for an unrelated issue and it came back good. Could this be something to do with air in the system?
  4. G

    Weird Cooling Issue

    Did some basic maintenance on the truck today (plugs). While I had the hood popped I decided to top off the coolant reservoir. It was low- below the cold. I don't think the truck is leaking coolant but it is a lot colder than when i filled it previously. Anyways, filled it up to cold while truck...
  5. G

    Persisting P0304

    Truck is a '99 tahoe, 198k miles. I have a P0304 that occurs only uphills under load. I have replaced the fuel filter, spyder injector, upper intake gasket, and distributor. The plugs, wires, coils, fuel pump, and compression have all been checked by a trusted mechanic. Based on my readings, the...
  6. G

    Does this diagnosis make sense?

    Will definitely be doing the Multi- Port upgrade if this is the issue. May even do it regardless while I'm in there. Could this issue also potentially be the fuel pressure regulator?
  7. G

    Does this diagnosis make sense?

    1999 with the 5.7 vortec
  8. G

    Does this diagnosis make sense?

    New mechanic, seems like he knows what he is talking about but want confirmation. I am getting misfire and rough running uphill. Replace all ignition parts and also checked fuel pressure and it is good. He tells me that something is leaking in the intake manifold (maybe injectors or fuel...
  9. G

    GMT400 parts sale , lots of parts

    any bull bars/ push bumpers for '99 2dr?
  10. G

    Heavy Vibration and Misfire after long uphill Climb

    Now that I think about that it may make sense- I feel the vibration but do not get SES unless I continue to feed in light throttle. If I back off when I first feel it it usually goes away or when I get it I back off and it usually goes away as I start slowing down. I will try tapping brake and...
  11. G

    Heavy Vibration and Misfire after long uphill Climb

    I actually was thinking it was my TC. However, I went up the hill that I get this mis on with OD locked out and i still got the shudder followed by SES. I have yet to try tapping the brakes. Will this get me more info?
  12. G

    Heavy Vibration and Misfire after long uphill Climb

    Interesting that you believe it is trans related. Would this be the case even if an SES was thrown? SES isnt thrown all the time. Is there any way to test this? I have luckily found a hill where I am able to replicate the shake.
  13. G

    Heavy Vibration and Misfire after long uphill Climb

    I wish I could tell you. Most recently the mis has been cylinder 4, but is sometimes stated as random as well. I was stumped and brought to my mechanic, who stated that he went through cylinder 4 (plug, wire, coil) and reported that it all checked out. At that point, I elected to just take the...
  14. G

    Heavy Vibration and Misfire after long uphill Climb

    After many searches and fixes, I have decided to post about the trouble I have been having. 99 2Dr, 200k miles. I have recently done fuel filter, MAF, plugs, wires, cap, distributor, seafoam on injectors. I am getting a vibration while climbing long uphills at speed. I live in a hilly area, and...
  15. G

    Check Your Fuel Filters

    Bought a '99 2dr in January. Have been chasing an occasional random misfire since bought. Initially would mis up hills. Treated with sea foam and issue was cured for a few weeks. Issue returned and updated plugs, wires, cap, and distributor but same issue persisted. Finally decided to give my...
  16. G

    2 Door Custom Amp Box

    Have been trying to figure out how to fit integrate my two amps for a while. Currently, they are in the center console on a sort of custom rack. Just built this amp enclosure that fits between dash and the console. Top is screwed down for sanding but will be held down with velcro. Unsure if I...

Latest posts

Members online

Total: 1,550 (members: 50, guests: 1,500)

Forum statistics

Threads
64,502
Messages
1,395,337
Members
51,842
Latest member
lentutt

Share this page

Top