Having problems with your 1998 Pontiac Bonneville ?

LOUD TICKING NOISE IN ENGINE AFTER INTAKE REPAIR

\015 MY NAME IS CHRIS AND I'M A MECHANIC. i JUST REPLACED THE UPPER AND LOWER INTAKE MANIFOLD GASKETS IN A 1998 BONNEVILLE 3.8L ENGINE. AFTER THE REPAIR I STARTED TO ENGINE. IT STARTED FUN BUT IT RUNS ROUGH INTERMITTENTLY AND MAKES A LOUD INTERMITTENT TICKING OR KNOCKING NOISE. PLEASE HELP!!! I'M AFRAID ITS DEBRIS IN THE ENGINE AND THE ENGINE IS NOW DAMAGED???\015 Posted / edited by AnonymousUser on : 26-07-2021

Answers :

A Vacuum Leak at Manifold would show up as the Roughness Also its getting a Diff reading at MAF and MAP give it a while to get Friendly with itself, then Freak out LoL Hoping this Little Bit Helps I have had A Bunch of Scarry Startup Initional runs in my years and Run Time Took Care of them.
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How long have you ran the engine ? I know that they will run rough and sometimes make strange noises for a few secounds or a little bit untill everything get oiled up again. I would make sure all the push rods are back in the right place and that all the lifters are tight.
Repair Help & Product Troubleshooting for 1998 Pontiac Bonneville

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