Question about Cars & Trucks
Check your exhaust system...
Once the muffler (even those Walker products) start coming apart inside... they can block the outflow...
No outflow = no intake (engine strangling).
Same possibility for the catalytic converter (if you have one)
Easy way... get it to the muffler shop ... get them to read
you hand-full of DTCs (trouble codes (some times free))...
Get that penetrating oil... soak up those header bolts
Open the system... if it runs you now know what has to be fixed BEFORE YOU CAN SAFELY OPERATE the VEHICLE.
Hope this helps
Posted on Dec 11, 2016
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Posted on Jan 02, 2017
SOURCE: rough idle
check you throttle position sensor first then fuel pressure regulator, then fuel pump. i have a 92 and had to recently do a massive overhaul. my rough idle was caused by a malfunctioning tps with a small exaust leak causing it to race and an intake manifold gasket. also check your idle speed adjustment settings.
Posted on Dec 03, 2008
SOURCE: 1999 SL1 running rough
Had a similar problem; started fine but lost power under acceleration and would stall. I changed the fuel sensor relay in the fuse box located on passenger side of interior fuse box. Ran fine after that.
Posted on Mar 07, 2009
Firing order on 3.1L engine is 1-2-3-4-5-6. The ignition system is a waste-spark system, which uses 3 coil packs (1-4) (2-5) (3-6). Make sure that the paired cylinders' plug wires go to the same coil pack.
Posted on Oct 12, 2009
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