I used to get the occasional smell of coolant through the a/c vents also and thought it was my heater core. Turned out it was a hairline crack in the radiator where the tranny fitting goes in. When it was under load it would seep and the smell was sucked in through the vent.
Just found out about this "wild vents" issue in these trucks that I'm having. Could the vacuum leak causing that issue be leaning out the engine causing the spark knock?
I've never heard of injectors making noise before. What would they sound like?
One thing I've noticed is when I get near half throttle is that the A/C goes from blowing through the dash vents to coming out at the floor. If this is vacuum operated could there be a vacuum leak in the dash...
Well I replaced the intake manifold and the chatter is still there. I have another idea of what it could be. Let me know what you think.
When I got the truck the thermostat was stuck open and never got above 135 degrees. Who knows how long it was driven that way. Is it possible that because...
Thanks for the link. That website looks to have a lot of good info. My gut tells me it's a vacuum leak. I had to replace the thermostat that was stuck open and when I removed the housing a chunk of the intake around the thermostat that was corroded broke off. Since I have to replace the intake...
Thanks for the suggestions. I have someplace to start now. Excuse my ignorance with this question but I'm used to working my old hotrods with carburetors. Can you detect a plenum gasket leak with a vacuum guage or by spraying starting fluid around it to get an rpm increase if there is a leak?
I just got a '99 with a 5.2 in it. The issue I'm having is valve clatter at part throttle. I thought it might have been bad gas at first but it's persisted for a couple of tanks now. It's not there at light throttle. Just at low to mid throttle. Once you push it to half throttle it goes away...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.