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Corvette
C4 Forum
89 Corvette ( The saga continues ) and thank god the saga is almost over
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<blockquote data-quote="Steve Fontaine" data-source="post: 133414" data-attributes="member: 3293"><p>So im noticing 2 things going on here with the MAF disconnected.</p><p></p><p>1- when the weather is cooler, the vette runs perfectly fine. no drop in battery voltage at all and no rough idle surge.</p><p>2- when the weather gets up to about 20+ degrees and sitting in the sun, the idle runs rough almost instantly and the battery voltage starts to drop insane fast at the same time.</p><p></p><p>the battery always looses voltage when the vette idles rough. and its always when its hot out. in the cooler mornings.... nothing. runs like a dream.</p><p></p><p>im trying to wrap my head around whats going on here. I know the MAF burnoff relay needs changing. and i also know the battery is probably near death. but the fact that the MAF is disconnected completely and this is happening has me sort of stumped.</p><p></p><p>i know hot summer weather is the culprit for killing batteries. the guy who i bought the vette from only charged it in spring and literally put on only 500km a year for 10 years he had it. The battery will also die if i do not drive it for a week. <span style="color: rgb(184, 49, 47)"><strong><u>so i know that needs changing</u></strong>.</span> ive read that a dying battery can also cause the idle to run rough as the battery is drawing more power from the altenator trying to charge itself and leaving no juice left for anything else. so im wondering if thats the first part of this issue.</p><p></p><p>lastly ive also noticed that the accelerator will hesitate if i take my foot off while driving and then tap it again. but only at random times.</p><p></p><p>thoughts?</p></blockquote><p></p>
[QUOTE="Steve Fontaine, post: 133414, member: 3293"] So im noticing 2 things going on here with the MAF disconnected. 1- when the weather is cooler, the vette runs perfectly fine. no drop in battery voltage at all and no rough idle surge. 2- when the weather gets up to about 20+ degrees and sitting in the sun, the idle runs rough almost instantly and the battery voltage starts to drop insane fast at the same time. the battery always looses voltage when the vette idles rough. and its always when its hot out. in the cooler mornings.... nothing. runs like a dream. im trying to wrap my head around whats going on here. I know the MAF burnoff relay needs changing. and i also know the battery is probably near death. but the fact that the MAF is disconnected completely and this is happening has me sort of stumped. i know hot summer weather is the culprit for killing batteries. the guy who i bought the vette from only charged it in spring and literally put on only 500km a year for 10 years he had it. The battery will also die if i do not drive it for a week. [COLOR=rgb(184, 49, 47)][B][U]so i know that needs changing[/U][/B].[/COLOR] ive read that a dying battery can also cause the idle to run rough as the battery is drawing more power from the altenator trying to charge itself and leaving no juice left for anything else. so im wondering if thats the first part of this issue. lastly ive also noticed that the accelerator will hesitate if i take my foot off while driving and then tap it again. but only at random times. thoughts? [/QUOTE]
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Corvette
C4 Forum
89 Corvette ( The saga continues ) and thank god the saga is almost over
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