MSD 8875 Wiring Harness, GM HEI Installation User Manual

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In some rare applications with a 5-Pin HEI Ignition Module, the engine may run erratically or shut

off on deceleration after the MSD Ignition is installed. To correct this, a diode assembly is available

from MSD Customer Support. The diode assembly installs on the input end of the module on the

middle terminal (Figure 3). Be sure the supplied lock washers are installed under the tab of the diode

assembly.

Figure 3 Installing the Diode Assembly with a 5-Pin Module.

Limited Warranty

SD IGNITION warrants MSD Ignition products to be free from defects in material and workmanship

under normal use and if properly installed for a period of one year from date of purchase. If found to be

defective as mentioned above, it will be replaced or repaired if returned prepaid along with proof of date of

purchase. This shall constitute the sole remedy of the purchaser and the sole liability of MSD Ignition. To

the extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or representations

whether expressed or implied, including any implied warranty of merchantability or fitness. In no event

shall MSD Ignition be liable for special or consequential damages.

Service

In case of malfunction, this MSD component will be repaired free of charge according to the terms

of the warranty. When returning MSD components for service,

Proof of Purchase must be supplied for

warranty verification. After the warranty period has expired, repair service is charged based on a minimum

and maximum charge.

All returns must have a Return Material Authorization (RMA) number

issued

to them before being returned. To obtain an RMA number please contact MSD Customer Service at

1 (888) MSD-7859 or visit our website at www.msdignition.com/rma to automatically obtain a number

and shipping information.

When returning the unit for repair, leave all wires at the length in which you have them installed. Be

sure to include a detailed account of any problems experienced, and what components and accessories

are installed on the vehicle.

The repaired unit will be returned as soon as possible after receipt. (Ground shipping is covered

by warranty). All units are returned regular UPS unless otherwise noted. For more information, call MSD

Ignition at (915) 855-7123. MSD technicians are available from 7:00 a.m. to 6:00 p.m. Monday - Friday

(mountain time).

M S D I G N I T I O N

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FRM28504

Revised 04/07

Printed in U.S.A.