Tip & How-To about Hyundai Elantra

Stalling and running rough - Hyundai Elantra - 2001-05

The Hyundai Elantra 2001 - 2005, 2.0 L engine is noted for this problem. It will lack power on acceleration and run rough and stall while driving. The engine light will come on for misfire codes. This problem is caused by a vaccum leak at the intake manifold gasket. The gasket is broken and needs to be replaced.
To replace the intake gasket with a new one, remove the 12m nuts holding the intake to the cylinder head. Then pry back( note: you do not have to completely remove the intake manifold here) the intake manifold to gain excess to remove the old gasket. Remove any excess gasket and clean with brake cleans the surface area of the intake. Install the new intake gasket on to the head and carefully install intake on to cylinder head studs. Tighten up nuts gradually and evenly to 15-20 ft.lbs.

Steve

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the car keeps stalling splutters then stops running


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1 Answer

How do i fix a rough idle and stall?


Hi Cody:
I'd be checking all of the vacuum hoses and the PVC valve.
Also it wouldn't hurt to put some fuel conditioner like SEAFOAM through it.
My approach tends to be to make sure the basics are looked after before starting to second guess for major problems.
Cheers.

Oct 30, 2015 | 2000 Hyundai Elantra

1 Answer

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You have to find the reason the check engine light is on. This will aid in diagnostics. Also, are you buying fuel at the same place both times?

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1 Answer

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Have you checked the air filter and filter box for a blockage ?
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1 Answer

at 40-45mph rough shift check engine light comes on and lack of power


A rough shift can result from the vehicle running rough. Lack of power and a vehicle running rough can be caused by one of two very common problems. One is a leak in the air duct between the air filter and the throttle body. The other is a leak from rubber hoses connecting the intake to the PCV valve at the crankcase causing a vacuum leak. More serious problems such as a misfire from a bad coil pack or a blown head gasket can also cause the vehicle to lose power and run poorly but these are not as common.

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