"Is the Srx 3.6 i reliable, and what should you check?"
When buying a used 2009 Cadillac SRX 3.6i (1st generation), the most frequently mentioned issue is costly maintenance for spark plug/coil replacement and engine access. Valve/tappet noise and intermittent misfires are also commonly reported.
Engine: LY7
LY7 · 3.6 i · Used in this car from 2004-2009
Known engine issues
Low timing chain lifespanThe main problem of this engine is the low resource of timing chains. They can stretch before 100,000 km, and replacement is quite complex and expensive.
Risk of damaging front cover during chain replacementWhen replacing chains, it is easy to damage the front cover, and it is quite expensive.
Overheating sensitivity and radiator leaksEngines of this series are very afraid of overheating, and radiators as luck would have it leak regularly.
+1 more issues on the engine detail page
Known issues and risks
Listed from most frequently reported, each with its source.
Costly maintenance for spark plug/coil replacement and engine access
Often reported
Routine procedures like spark plug, coil, or injector replacement often require removing the upper intake manifold, significantly increasing labor time and costs compared to engines with direct access.
Engine Bay
Valve/tappet noise and intermittent misfires
Often reported
Ticking noise from the timing system (hydraulic tappets/valves) and irregular firing/missed synchronization causing the check engine light to come on and rough running are frequently reported.
Engine Internal
High oil consumption and leaks
Often reported
Many users report higher than normal oil consumption and widespread leaks (filter, valve cover gaskets, adapters), requiring frequent top-ups. Some reports indicate consuming liters of oil every few thousand kilometers.
Engine Internal
Premature timing chain wear
Often reported
On the 3.6 V6 (HighFeature/LY7) engine, early primary chain stretch and guide/tensioner wear are common. Symptoms include metallic noise from the front when cold, timing codes (e.g., P0008/P0016), performance loss, and risk of mechanical damage in severe cases.
Timing chain
Cadillac Srx 3.6 i technical specs
Cadillac Srx 3.6 i (2009): boot 238 L; fuel use 11,8 l/100 km (urban 13,8 l/100 km · extra-urban 10,7 l/100 km).
Boot capacity
238 L
Fuel consumption
11,8 l/100 km (urban 13,8 l/100 km · extra-urban 10,7 l/100 km)
Top speed
210 km/s
Tire size
235/65 R17
Fuel tank
70 L
Dimensions (L×W×H)
4950 × 1845 × 1670 mm
Same trim, different year
2009
Frequently asked questions
What should I look for when buying a Cadillac SRX 3.6i?+
When buying a 2009 model 3.6i, check the service history, test drive, and look for engine/transmission warnings. Most commonly reported issues: costly maintenance for spark plug/coil replacement and engine access; valve/tappet noise and intermittent misfires; high oil consumption and leaks.
What are the common problems of the Cadillac SRX 3.6i?+
Most frequently reported issues: costly maintenance for spark plug/coil replacement and engine access; valve/tappet noise and intermittent misfires; high oil consumption and leaks.
Is the Cadillac SRX 3.6i reliable?+
Instead of a simple yes/no, it's best to weigh the proven pros and cons together. This page lists 4 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from Difetti fault database records; the source vehicle and target vehicle are verified for brand, fuel, engine, and generation match. Topics with insufficient evidence are not shown.