heater problem

GMC
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SHREK
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  • 1 POST
I have a 93 grand am 3.3l .i have a bit of heat for about a minute or so after i turn on the fan.i was told that the heater core may be plugged or restricted.is this correct info or is there another problem
Jan 14, 2006 at 5:01 AM

What to check next

Diagnostic guidance. Suggested checks and possible repairs are separate from the owner's reported results.

Have the coolant level and heater-core flow evaluated before authorizing heater-core replacement. Ask the technician to compare heater-hose temperatures safely; do not handle hot hoses or open a hot cooling system.

Guidance references and applicability

Source: Original question and visible replies. Owner reports and other participants' experiences are distinguished. Next steps are editorial guidance for obtaining diagnosis or clarifying the reported findings; they are not a verified repair procedure or an independently confirmed component diagnosis.

Read the replies · Discussion summary and reported outcome

AI-ASSISTED GUIDANCE · REVIEWED BY 2CARPROS
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PVITULLI
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  • 5 POSTS
First warm up the car and turn on the heat.
Then touch the 2 hoses going through the firewall to the heater core.
If one is hot and the other is not.
You have a clogged heater core.
Also check your fluid level.
Jan 14, 2006 at 9:39 AM

Discussion summary

heater problem

The owner of a 1993 Grand Am 3.3L reported that cabin heat lasted about a minute after the fan was switched on.

Reported outcome: No test results or completed repair were reported.

A reply suggested checking coolant level and comparing heater-hose temperatures. A restriction was proposed, but the discussion does not establish a clogged heater core.

Read the original discussion

AI-ASSISTED SUMMARY · REVIEWED BY 2CARPROS
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