Thread: 5.3 LS fuel pressure drops/ hard cold starts!
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Old 04-12-2016, 03:15 AM
cjsgarage cjsgarage is offline
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Michael,
Those throttle bodies get gummied up a bit too. I clean them with a rag and a little solvent and it makes a huge difference. Be sure to shoot some solvent through the idle bypass hole.
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