Engine Performance problem
1992 Chevy Astro 6 cyl Two Wheel Drive Automatic 120k miles
Once engine is warmed up, I get pinging and loss of acceleration when I put the engine under load. Also, my old radiator had to be replaced when it started leaking out the end plastic area. replaced it 14 months ago. Guage has been going up to yellow area, which it never used to do. Leak out top rubber escape valve--replaced 2 weeks ago. then, saw leak at gasket where thermostat is--replaced thermostat 1 week agoo--still leaks there. Over last 4 months, 'check engine' lite goes on after I've driven about 20 minutes or so--usually goes back off. (3 octane seems to help some with the pinging, but still there under load.
1992 Chevy Astro 6 cyl Two Wheel Drive Automatic 120k miles
Once engine is warmed up, I get pinging and loss of acceleration when I put the engine under load. Also, my old radiator had to be replaced when it started leaking out the end plastic area. replaced it 14 months ago. Guage has been going up to yellow area, which it never used to do. Leak out top rubber escape valve--replaced 2 weeks ago. then, saw leak at gasket where thermostat is--replaced thermostat 1 week agoo--still leaks there. Over last 4 months, 'check engine' lite goes on after I've driven about 20 minutes or so--usually goes back off. (3 octane seems to help some with the pinging, but still there under load.
Feb 1, 2010 at 7:39 PM