Question about 2004 GMC Envoy SLT

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Where is the purge control solenoid and powertrain relay located on 2004 Envoy SLT 4.2L?

Engine will turn over but want start no spark at spark plugs boot.

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  • Joe Russell Dec 04, 2016

    i don't see relay # 58 in the fuse under hood fuse box there is voltage at the coil's pink wire how do i check the trigger side of the coil?

  • Joe Russell Dec 05, 2016

    i don't see relay # 58 in the fuse box under hood there is voltage at the coil's pink wire will a Purge Solenoid cause no spark at coil over plugs?

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  • GMC Master
  • 14,071 Answers

Powertrain relay ? Maybe you mean IGN 1 relay ? This supplys B+ power to the coils . relay # 58 in the under hood fuse box .
Is there B+ voltage at the coil's pink wire ?
Evaporative Emission (EVAP) Canister Purge Solenoid (LL8)
On the left side of the engine block
Engine Controls Component Views in Engine Controls - 4.2L
Engine Controls Connector End Views in Engine Controls - 4.2L
Evaporative Emission (EVAP) Canister Purge Solenoid (LM4)
On top of the engine, toward the front
Google picture of solenoid so you know what your looking for .

Posted on Dec 04, 2016

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Posted on Jan 02, 2017

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