Standard Ignition Exhaust Gas Recirculation (EGR) Vacuum Modulator P/N:VS100
Standard Motor Products
Standard Ignition VS134 EGR vacuum modulator for the 1998-2000 Chevrolet Metro 3-cylinder 1.0L and other vehicles regulates the vacuum that operates the EGR valve. Exhaust gas recirculation sends a measured share of exhaust back into the intake, and this modulator manages the vacuum for that.
A rough idle, a check engine light or a failed emissions test can mean the modulator is no longer regulating vacuum to the EGR valve. A leaking vacuum line, a sticking EGR valve or clogged EGR passages can bring on these signs as well, so track down the actual cause before you buy a replacement.
The VS134 is a three-port EGR vacuum modulator that also fits the 1989-1991 Chevrolet Tracker 4-cylinder 1.6L and the 1989-1997 Geo Metro 3-cylinder 1.0L. If your car is not named here, open the "Vehicles it fits" section and look up your exact model and engine.
Fit and size
Build and materials
This listing holds one EGR vacuum modulator, and one is all a car takes.
Is the Standard Ignition VS134 EGR vacuum modulator right for a 1998-2000 Chevrolet Metro 3-cylinder 1.0L?
Yes, the Standard Ignition VS134 fits the 1998-2000 Chevrolet Metro 3-cylinder 1.0L and the 1989-1991 Chevrolet Tracker 4-cylinder 1.6L; the "Vehicles it fits" section covers other cars and engines.
Does the VS134 work on a 1989-1997 Geo Metro 3-cylinder 1.0L?
Yes. The VS134 is listed for the 1989-1997 Geo Metro 3-cylinder 1.0L, and that car takes one modulator.
How many ports does the Standard Ignition VS134 EGR vacuum modulator have?
The Standard Ignition VS134 has three ports. This listing is a single modulator, and one is what a car takes.
Could a rough idle come from a bad EGR vacuum modulator?
It can, if the modulator is not regulating vacuum to the EGR valve. A check engine light or a failed emissions test may also appear, and a shop can run the tests that need the engine running.
Where is the Standard Ignition VS134 EGR vacuum modulator made?
The country of origin for this EGR vacuum modulator is China.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.