morris8809
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- Feb 20, 2012
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Hey guys, new member here, I have been looking around the site and other sites for resolution on a problem with my truck. Starting a year ago one morning i was driving my truck and it started loosing power and the ses light came on and started flashing, I slowed down and it stopped flashing and I babied it untill i got home. I ended up replacing the spark plugs (acdelco Platinum), wires (acdelco), and the fuel filter (wix). After replacing the fuel filter the problem went away and never came back up. The code being thrown was a P0307 or P0300
A month ago we got our first snow and some below freezing temps and ever since then I have had the same issue. I check all the plugs (none were fouled), Checked the wires and none were damaged and ran some seafoam through the brake booster and the fuel tank. I cleared the code and about a week later it came back. So then i swapped plug wire and coil from one cylinder to another and it took another week (the next time in the low 30's temp) for the code to show back up. Next I pulled cylinder 7 injector and it looked fine but i found them cheap on amazon so i went ahead and replaced all 8 injectors. (delphi brand)
That was last Monday, today i started my truck up to warm it up (26F outside) and when i got in it my ses was on. I also noticed the exhaust seemed to be alternating each cycle like if you put your hand infront of it it would hit your hand and then no air coming out and then another puff of air hits your hand. I have not checked to see what this code is but its acting the same as before. MAF and throttle body have been cleaned. Any Ideas?
A month ago we got our first snow and some below freezing temps and ever since then I have had the same issue. I check all the plugs (none were fouled), Checked the wires and none were damaged and ran some seafoam through the brake booster and the fuel tank. I cleared the code and about a week later it came back. So then i swapped plug wire and coil from one cylinder to another and it took another week (the next time in the low 30's temp) for the code to show back up. Next I pulled cylinder 7 injector and it looked fine but i found them cheap on amazon so i went ahead and replaced all 8 injectors. (delphi brand)
That was last Monday, today i started my truck up to warm it up (26F outside) and when i got in it my ses was on. I also noticed the exhaust seemed to be alternating each cycle like if you put your hand infront of it it would hit your hand and then no air coming out and then another puff of air hits your hand. I have not checked to see what this code is but its acting the same as before. MAF and throttle body have been cleaned. Any Ideas?