gmcyukondriver
Built, not bought.
Ok, so my truck has been having a couple minor issues lately that I want to get tracked down and taken care of.
1. The infamous heater core gurgle. Could someone let me know how to diagnose if the heater core is bad? Is there anything else that would cause this? Sounds like a waterfall behind the dash every time I accelerate from a stop. It's getting annoying. I'm also pretty sure my thermostat is stuck wide open, so I'll be replacing that soon. Is there an easy way to make sure you get all the air bubbles out of the cooling system?
2. Starting issue. When I start my truck, it fires, then the RPM's drop, and it seems like it's going to die. Around 200 RPM. If I give it a little gas when it does this, the RPM's kick up, and stay around 700. Sometimes the idle surges a little bit, until I drive it, then it smooths out and drives and idles fine. No problems. But if I shut it off, and start it again, most of the time it does the same thing. I'm not getting any codes. I'm thinking it's either my Throttle Position Sensor, or it's my fuel pump (original with 200k miles) finally giving up the ghost. Anything else I should look at? Injectors leaking maybe?
Thanks all, I'm looking to get this thing dialed in and running as well as I can before I bite the bullet on getting it tuned. Transmission is going to have to be rebuilt soon too (Also original, never rebuilt with 200k).
1. The infamous heater core gurgle. Could someone let me know how to diagnose if the heater core is bad? Is there anything else that would cause this? Sounds like a waterfall behind the dash every time I accelerate from a stop. It's getting annoying. I'm also pretty sure my thermostat is stuck wide open, so I'll be replacing that soon. Is there an easy way to make sure you get all the air bubbles out of the cooling system?
2. Starting issue. When I start my truck, it fires, then the RPM's drop, and it seems like it's going to die. Around 200 RPM. If I give it a little gas when it does this, the RPM's kick up, and stay around 700. Sometimes the idle surges a little bit, until I drive it, then it smooths out and drives and idles fine. No problems. But if I shut it off, and start it again, most of the time it does the same thing. I'm not getting any codes. I'm thinking it's either my Throttle Position Sensor, or it's my fuel pump (original with 200k miles) finally giving up the ghost. Anything else I should look at? Injectors leaking maybe?
Thanks all, I'm looking to get this thing dialed in and running as well as I can before I bite the bullet on getting it tuned. Transmission is going to have to be rebuilt soon too (Also original, never rebuilt with 200k).