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#1 |
Join Date: Dec 2010
Location: Sin City
Posts: 149
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Wish me luck...hope I don't have to sell a kidney to get it out!!!
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[SIGPIC][/SIGPIC]1991 ZR-1 #128 |
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#2 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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whats the diagnosis?
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#3 |
Join Date: Dec 2010
Location: Sin City
Posts: 149
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Don't know yet.
Developed an oil leak up in the front, passenger side, probably one of those many sensors. And has developed a miss/stumble/stammer, whatever you want to call it. But it doesn't seem to be spark, but more fuel related. Will "hunt" for an idle speed at a stop light sometimes, other times it wants to idle around 1800 rpm, like it has a vacuum leak. And driving down the freeway I could feel it surging at speed, which really bothered me. Totally bummed at this point. |
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#4 |
![]() Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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On my car, those same problems ended up being
1) leaky oil cooler lines 2) popped off purge solenoid vacuum line 3) injectors (but item #2 was more like the your description) |
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#5 |
![]() ![]() Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,904
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My throttle body does the "hunt for a idle speed" thing until I blip the throttle. Sending it to Marc tomorrow for a rebuild.
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1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project Last edited by Blue Flame Restorations; 08-15-2012 at 01:58 PM. |
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#6 |
![]() ![]() Join Date: Dec 2003
Location: Grand Island NE
Posts: 1,508
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Sent mine to Marc two years ago for the same problem. Works perfectly since.
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Dennis Fierstein 90 ZR-1 #2562 Atomic-Z ZR-1 Net Registry Chairman of the Board ZR-1 Net Registry Treasurer |
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#7 |
![]() ![]() Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Which "hospital" did you send it to??
Sounds like some smallish stuff being bigger than the sum of it's parts. The leak - wouldn't be surprised if it was the low pressure (idiot light) switch. Throttle body prolly needs to be re-bushed or something like that. No worries. You be fine. Da "skunk" will terrorize again! P.
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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#8 |
Join Date: Dec 2010
Location: Sin City
Posts: 149
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#9 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,681
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Very likely stickin throttle like mine earlier this year. Marc repositioned the throttle plates and installed helper spring to make sure it closes.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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#10 | |
![]() ![]() Join Date: Feb 2010
Location: Pendleton, IN
Posts: 3,904
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I've done the grease on the plates trick, spray grease on the shaft ends and blipping the throttle all to make it better. The grease only lasts about a week. Runs great right after lubrication though. Taking it off and boxing it up in a few minutes. Shipping to Marc tomorrow morning.
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1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project |
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