deane1935

What transmission does a 1998 Lumina LTZ with a 3.1l engine have? Is it the 4t60 or 4t65e? Also does a transmission code show up as SES light and can a OBD2 scanner pull the code? Thanks Deane

tblake

I think its the 4t65e, but not sure. And yes, a tranny code will kick the ses light on.

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2000 Pontiac Grand Prix GTP
(3.4" Pulley, DHP 1.5 Powertuned PCM, ZZP 2.5" High Flow Downpipe, MMS Ported and Polished Lower Intake Manifold, ZZP Stage 1 Ported Throttle Body, 180° Thermostat, NGK Iridium TR6IX)




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BNaylor

The best way to tell since there were production changes on Vin "M" 3.1L is to look on the SPID label which lists the GM RPO codes for your vehicle. It's located under the trunk lid or back of spare tire cover.

If you see M13 on one of the lines of data it is the 4T60E. If it says M15 it is the 4T65E.

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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'08 Pontiac Grand Prix GXP (Liquid Silver Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged
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maxwedge

Most regular scanners will not show a trans code unless the CEL is on.