Typical cost: about $150 to $900, depending on which solenoid is involved and whether you replace only the solenoid or the whole component. Starter solenoid replacements are usually $150–$500, while transmission solenoids or valve-body work can run from $200–$900 or more.
Solenoids control electrical switching in components like the starter and the automatic transmission valves. On a Chevy Impala, the two most common solenoids you might need to replace are the starter solenoid (in or near the starter motor) and transmission solenoids that control shift functions inside the transmission. Accurate budgeting depends on the exact solenoid, the model year and transmission, and local labor rates. The following breakdown offers a clearer picture of what you might expect to pay.
Costs by solenoid type
Below is a breakdown of the two most common solenoid replacements you might encounter on an Impala, with typical ranges for parts and labor.
Starter solenoid (within or attached to the starter)
Note: In many cases, mechanics replace the entire starter rather than a separate solenoid, since the solenoid is integrated into the starter. The figures below cover both scenarios.
- Solenoid-only replacement (partial repair): Parts typically $20–$60. Labor roughly 0.5–1.5 hours at $75–$125/hour; total commonly around $95–$210.
- Starter replacement (replace the whole starter): Parts typically $100–$260; labor 1–2 hours; total usually $300–$500, depending on rate and accessibility.
- Diagnostics or shop fees may apply if the problem isn’t clearly the solenoid; add about $50–$100 in some cases.
Concluding: Starter-related solenoid work on a Chevy Impala typically lands in the $150–$500 range, influenced by whether the starter itself is replaced and local labor rates.
Transmission solenoids and related work
Transmission solenoids control hydraulic flow for gear changes. Replacing a single solenoid or addressing valve-body issues is common when diagnostic trouble codes point to shift concerns or pressure problems.
- Single shift solenoid replacement: Parts roughly $25–$100; labor about 1.5–3 hours; total commonly $150–$500.
- Multiple solenoids or valve-body work: Parts roughly $100–$350; labor 2–4 hours; total typically $400–$900.
- Full valve body replacement or transmission removal/reinstallation: Can push total costs into the $1,000–$2,000 range, depending on the car’s year and shop.
Concluding: Transmission solenoids usually cost between about $200 and $900 for parts and labor, with higher totals for more extensive valve-body service or complete transmission work.
What affects the price
Several factors influence the final bill, including local labor rates, the Impala’s model year and transmission type, whether the work is done at a dealer or independent shop, and whether the entire assembly (starter or valve body) is replaced rather than just the solenoid. Diagnostic time, core charges, and any needed gaskets or hardware can also affect the total.
How to get a reliable estimate
To obtain an accurate quote, request a written estimate that itemizes parts and labor, and confirms whether the job will replace only the solenoid or the entire assembly. It’s prudent to get quotes from several reputable shops and verify warranties on parts and labor, including any warranty on remanufactured starters or valve bodies.
Summary
Replacing a solenoid on a Chevy Impala can range from roughly $150 up to $900 or more, depending on whether you’re replacing a starter solenoid or transmission solenoids, and whether the work involves a full starter or valve-body service. Start with a precise diagnosis, compare quotes, and weigh whether a partial solenoid fix or a full component replacement is the better long-term option for your vehicle.