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Engine Controls - Tests W/O Codes - EEC 2.5L: Symptoms: Backfires
- Check for vacuum leaks.
- Check ignition system. See
BASIC TESTING - 4-CYL
article in the ENGINE PERFORMANCE section.
- Check engine compression. Check engine mechanical condition.
Check intake manifold, manifold gasket, camshaft and valves.
- Perform QUICK TEST. See
TESTS W/CODES - EEC 2.5L
article in the ENGINE PERFORMANCE section.
- Check for leaking or restricted exhaust system.
- Check fuel delivery. efer to the appropriate
I - SYSTEM/COMPONENT TESTS - EEC (2.5L)
article in the ENGINE PERFORMANCE
section.