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#1
04-16-2009, 08:31 PM
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check engine light VS. clock?
Hey gang,
My wife's 98 4runner had a check engine light on, before she could bring to my shop, the light went out. She noted that the clock was blank, then came back. Now the clock has quit again but the check engine light is not on. Are these related??? Thanks, Robert Last edited by gandcrepaircenter; 04-16-2009 at 08:33 PM. Reason: spelling 
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#2
04-17-2009, 10:55 AM
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Re: check engine light VS. clock?
The two events should not be related. The clock has nothing to do with the engine's operation, sensors, or emissions. It only serves as a constant reminder that you're late for something. The clock in my Cam will fade in & out as well, so it may be a simple wiring issue.
The check engine light usually lights up immediately when a problem is detected but can also be lit on some systems based on what's called "two-trip detection logic", meaning that if the same issue is detected during two successive engine starts/operations, the code will be stored and the CEL will light up. When the problem being detected is no longer present or doesn't meet the two-trip detection requirement, the light will go out but the code may still be stored in the computer memory. Many auto parts stores will read your codes for free using a code scanner...check it out for any stored codes and have them cleared from memory. The most likely reason for the CEL coming on is a missing, loose or faulty gas cap. But also check your gauges for any out-of-normal readings, especially oil pressure, engine temperature, and voltage...not necessarily in the RED, but a reading that isn't where it usually should be. That is a sign of some larger impending problem. Have the wife keep a closer eye on the gauges to see if anything creeps up. Hope this helps!
__________________
Current Garage: 2009 Honda CR-V EX 2006 Mazda 3i 2004 Chevrolet Silverado 2500HD 2003 GMC Envoy XL 2000 Honda ST1100 2000 Pontiac Sunfire Vehicle History: 2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat.
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#3
04-17-2009, 01:23 PM
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Re: check engine light VS. clock?
Thanks for the feedback.
Have a great weekend.
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#4
04-22-2009, 09:50 AM
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Re: check engine light VS. clock?
Quote:
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84 4Runner - ARBed 5.29s F&R, 4.7 & 2.28 t-cases, Chevys, AP x-over, BudBuilt x-member, 2" drv trn lift, 36" TSLs, 30 spline Longs 80 something p/u - Buick 231 V6/TH-350 trans, Holley 4 bbl, Weiand intake, dual batts, dual tanks ... 89 4Runner - stock 2000 Isuzu Trooper + 2010 Sonata
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#5
04-22-2009, 10:04 AM
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Re: check engine light VS. clock?
Quote:
__________________
Forum Guidelines:http://www.automotiveforums.com/vbulletin/guidelines.html "What we've got here is a failure to communicate"
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#6
04-24-2009, 01:49 AM
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Re: check engine light VS. clock?
Quote:
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