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Part #: 77-7429

Cardone 77-7429 Engine Control Module

Engine Control Module
8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Engine Control Module
Fitment: Chevrolet and GMC, S10, S10 Blazer, S15, and S15 Jimmy
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Cardone Engine Control Module for GM and Chevrolet

Restore engine management performance with the Cardone 77-7429 remanufactured Engine Control Module. This ECM is built to meet or exceed original equipment performance and is validated for the specific applications listed below, including 1986-1987 Chevrolet S10, Chevrolet S10 Blazer, GMC S15, and GMC S15 Jimmy.

Key Features

  • Remanufactured Original Equipment-style engine control module for a direct vehicle fit
  • Critical components are re-soldered or replaced at Cardone’s Philadelphia manufacturing plant
  • 100% computer tested for reliability and function
  • On-car vehicle validation is used to confirm durability and performance
  • Earth-conscious remanufacturing process reduces energy and raw material use versus building a new part

Product Details

Cardone’s Engine Control Module line focuses on correcting common failure points found in the original unit. Through reverse engineering, engineers identify why the module failed and address those weaknesses during remanufacturing. The result is a replacement ECM built for dependable electronic control in GM and Chevrolet truck and SUV applications. Part number 77-7429 is listed for 1986-1987 Chevrolet S10 and S10 Blazer, plus 1986-1987 GMC S15 and S15 Jimmy. This part cross-references Chevrolet and GMC 1227429 for the same application.

What It Can Help Resolve

  • No-start or hard-start conditions related to ECM failure
  • Intermittent drivability problems caused by unstable module operation
  • Check engine concerns tied to faulty engine control signals
  • Electrical issues traced to damaged solder joints or internal module wear
  • Replacement needs after confirming the original ECM is the source of the fault

Installation Notes

  • Fits 1986-1987 Chevrolet S10, N/A
  • Fits 1986-1987 Chevrolet S10 Blazer, N/A
  • Fits 1986-1987 GMC S15, N/A
  • Fits 1986-1987 GMC S15 Jimmy, N/A
  • Transfer PROM(s)/CALPACK from the original module and complete any required relearns after installation
  • Before replacing the ECM, verify grounds, power feeds, wiring harness condition, and related relays or solenoids

Quality Assurance

Each Cardone 77-7429 ECM is computer tested, and application-specific units may also be bench-tested or validated on vehicle depending on the design. The remanufacturing process is built around restoring original function while addressing known failure points in the module.

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1987ChevroletS102.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1987ChevroletS10 Blazer2.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1987GMCS152.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1987GMCS15 Jimmy2.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1986ChevroletS102.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1986ChevroletS10 Blazer2.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1986GMCS152.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1986GMCS15 Jimmy2.8LV6N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1227429

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.