Help Pls 99 Chevy Tahoe 5.7 liter V8 issue
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Help Pls 99 Chevy Tahoe 5.7 liter V8 issue
Hello I have a 99 Chevy Tahoe that has a rough time starting but more so my main problems are high idle after start then goes to normal then back to high, as well as bogging down while driving till around 50mph, also when the engine is high idling it jerks into gear I have replaced the TPS, Ignition Control Module, Coil Pack, as well as the exhausts from the manifold to the rear pipe that comes out of the back basically the section that has the catalytic converters, as well as 3 of the 4 O2 sensors because the last one I havent been able to break free yet. I just need help in what direction I should go instead of just throwing more money at it and still having the same problems. The engine is the 5.7 V8 its the 4wd LS 4dr model with roughly 300,000 miles on the engine. Any help would be appreciated thank you!!
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