Question about 2003 Chevrolet Suburban 1500
Hello, Have a look at your Crankshaft and Camshaft sensors. As I remember there was a problem on some Chevies with the Crank sensor and it caused a different problem with the timing. But it probably could cause more problems so its' suspect.
While you did the filter and Regulator for the fuel, did you do a fuel sample? Also some of the ECU's can be refreshed and it is possible that you lost some info in the main computer and just need a reload of the program.
Although you changed the Intake manifold gasket, did you do a Vacuum check or mist the Vacuum lines while the engine ran? You should see if the Vacuum reading is okay. Then see if there is a Vacuum leak somewhere.
I hope my solution is very helpful to you. It looks like you spent quite a bit to solve this.
Posted on Mar 18, 2011
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Posted on Jan 02, 2017
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