P1336 on Chevrolet: Causes, Symptoms and Fix Cost
Quick Answer
Safe to drive (short-term)
P1336 on a Chevrolet is a manufacturer-specific code, so its meaning depends on the make. On GM cars it means the engine computer has no stored crankshaft position variation values, which it needs to detect misfires without false alarms. Ford code lists describe it as a crank or cam sensor range or performance fault. Other makes may define it differently, so confirm the definition for your car.
- Severity
- Moderate · Ignition
- Typical repair cost, all makes
- €30-€5000
Connect a standard OBD2 adapter (Bluetooth LE on iPhone) to your Chevrolet and Skanyx tells you what P1336 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
Get Skanyx freeWhat does P1336 mean on a Chevrolet?
The Quick Answer above is the generic definition. What follows is the model-specific detail for the Chevrolet models that log P1336.
Chevrolet K1500 5.0 V8 (1998)
1998
GM defines P1336 as crankshaft position system variation not learned: the engine computer has no stored crankshaft variation values, which it uses to avoid false misfire detection. In a forum thread on a 1998 K1500 5.0 that stalled with the code after the computer, distributor and crankshaft sensor were replaced, replies said that replacing the computer or distributor can set it, and advised checking the distributor position and then running the crankshaft relearn with a scan tool. One reply cured the same code on a Tahoe by adjusting the distributor slightly.
Source: gmt400.com
Sources
- gmt400.com gmt400.com/goto/post?id=1127590
What causes P1336 on a Chevrolet?
Beyond the generic causes listed on the main P1336 page, these are the patterns noted for Chevrolet models:
Relearn not done after sensor or computer replacement
: Chevrolet K1500 5.0 V8 (1998)
Distributor position or crank sensor signal
: Chevrolet K1500 5.0 V8 (1998)
How to diagnose P1336 on a Chevrolet with OBD2
- Work out which definition applies. On a GM car, the first question is whether the crankshaft sensor, computer or engine was replaced or reprogrammed recently
- Read all codes and the freeze frame. Note misfire codes and any cam or crank sensor codes stored with P1336
- On a GM car, have a workshop with a scan tool that supports the crankshaft variation relearn run it; the tool guides the conditions for your engine. A generic reader cannot run it. On engines with a distributor, check its position first
- Inspect the crankshaft and camshaft sensor connectors and wiring for damage, oil, corrosion and loose pins
- On a Ford fitted with a camshaft synchronizer (the 3.0 and 4.0 V6 Ranger family, for example), check that the camshaft sensor is set to cylinder 1 as Ford's procedure describes, since the position matters after any work on it
- Check the reluctor or target wheel and the timing drive if the sensors and wiring are good
- Clear the code and test drive. If it returns after a sensor swap, look again at the relearn, the wiring and the timing before buying more parts
How much does P1336 cost to fix on a Chevrolet? (EUR)
Estimated repair costs for P1336 in EUR, compiled across makes. Chevrolet costs typically sit in the middle of each range.
| Repair | Parts Cost | Labor Cost | Total Estimate | DIY Difficulty |
|---|---|---|---|---|
| Run the crankshaft variation relearn with a scan tool (GM) | €0–€0 | €30–€100 | €30–€100 | Professional |
| Replace crankshaft position sensor | €20–€100 | €50–€200 | €70–€300 | Moderate |
| Replace camshaft position sensor | €25–€120 | €40–€150 | €65–€270 | Moderate |
| Repair wiring or replace the connector pigtail | €10–€50 | €60–€180 | €70–€230 | Moderate |
| Replace camshaft synchronizer assembly (wide range) | €60–€250 | €100–€300 | €160–€550 | Professional |
| Timing belt kit, or timing chain job (a chain on a V6 or V8 is the top of the range) | €240–€1500 | €60–€3500 | €300–€5000 | Professional |
Prices estimated as of October 2026. Costs vary by region, vehicle, and shop.
Codes related to P1336
These codes are often seen alongside P1336 or point to related issues, on any make:
Looking for the full P1336 reference (all makes, full diagnosis flow, complete repair cost matrix)? See the main P1336 guide