P0106 on a Chevy: Causes, Fixes & Repair Cost

🟠 Moderate severity · drivable

You can usually drive a Chevy short-term with P0106, but a wrong MAP reading can cause rough idle and hesitation, so fix it soon.

What P0106 means on a Chevy

On a Chevy, P0106 means the manifold absolute pressure (MAP) sensor signal is outside the range the engine computer expects. The PCM uses the MAP reading to adjust fuel and spark, so a mismatch sets a range/performance code. This usually points to a vacuum leak, a dirty or failing MAP sensor, or a blocked sensor hose.

Is P0106 common on Chevys?

P0106 is a known code on GM vehicles, especially where the MAP sensor hose or wiring sits near hot engine parts and ages. A cracked vacuum line, a contaminated sensor, or a corroded connector are the usual findings on trucks and SUVs. It is a sensor or vacuum fault, not an engine failure.

Commonly reported on: Silverado, Malibu, Equinox, Traverse.

Symptoms

Check engine light on
Rough or surging idle
Hesitation when accelerating
Worse fuel economy

Common causes

most common: Vacuum leak from a cracked or loose hose
common: Dirty or failing MAP sensor
common: Corroded or loose connector
less common: Restricted or pinched MAP sensor hose

How to fix it

Fix	DIY?	Typical cost
Inspect and replace cracked vacuum hoses	Yes	$10–80
Clean the MAP sensor and its port	Yes	$10–25
Replace the MAP sensor	Yes	$50–140
Repair damaged wiring or connector	Mechanic	$60–180