1985 Corvette Idle Adjustment, 7L engine and automatic transmission m

1985 Corvette Idle Adjustment, 7L engine and automatic transmission may not be able to maintain the minimum idle speed. Shop top-quality auto parts at AutoZone. a. These steps apply specifically to the 1985 model year, and it general to other years. General Idle speed and off-idle throttle response Jun 15, 2020 · C4 Tech/Performance - 1985 Corvette setting the idle - Hi everybody, I'm trying to set the idle on my 1985 Corvette 4 plus 3. Not sure if that is controlled by the dfi or not. General Idle speed and off-idle throttle response on the early TPI systems is determined by correct adjustment of the minimum idle speed screw combined with a correct setting of the TPS. Jul 13, 2006 · Rev. I followed the procedure as written in the GM manual, and when i connected things back up, the car was idling at 1400 rpm! So i just turned the screw down again, which defies the point of resetting it Some 1985 Corvettes equipped with the L98 5. I stumbled upon this site that says how to reset I have a relatively stock (stock L98 engine with automatic transmission) 1985 Corvette. These steps apply specifically to the 1985 model year, and in general to other years. I'n short I got new Apr 28, 2008 · If the 1985-1996 Corvette fuel filler boot drain is plugged, water will accumulate and slowly be drawn into the tank. reset procedure, after that i reset tps correct? Feb 25, 2003 · C4 Tech/Performance - Resetting the IAC? How do I do it? - I've been getting some good info but can someone verify this procedure? 1) Turn key on (engine off) 2) Press gas pedal to floor and release it 3) Start car (don't turn the key off before you start it) Feb 16, 2012 · C4 General Discussion - idle problem 1985 corvette - Hi guys, I am brand new to this site and new to owning a corvette but I am having a problem with my 1985 corvetteproblem I bought the car it kinda had a idle problem when the car is ice cold it has a fast idol but whe it reaches operating temp while driving it it Dec 27, 2018 · C4 Tech/Performance - '85 manual IAC valve - I've come to the realization that the IAC in my '85 is completely dead and open, leading to a 900 RPM idle in gear. New to the forums here but have been following threads for a few weeks so I thought I'd give it a try. That Jul 7, 2021 · Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 1985 corvette - idle problems. 0 at WOT), the Jul 7, 2004 · C4 Tech/Performance - Idle speed for 1985?? - What is the expected idle speed for the 1985 corvette. I am believing that the idle speed is set too low. Thank you. I have an 86 C4 with an idle and stall issue I just can't figure out. My car jumps between 500 - 600 rpm when in drive (automatic) and the engine is up to normal temps. In this video, I will show you how to set the base idle for your Chevy or GM V8 engine. Your go-to source for car and truck parts, DIY repair advice, and Free Next Day Delivery. Jun 19, 2020 · C4 Tech/Performance - 1985 Corvette setting the idle SOLVED - Hello everybody, First I want to thank everyone that made an effort to help me. Oct 9, 2004 · C4 Tech/Performance - iac reset procedure please!!!!!!! - hello and sorry for asking again, but i need the i. Early on in the work on this car I discovered that the gasket in the air horn of the TB unit was NFG. 1985-1989 Corvette Idle to Air Mixture Adjustment Procedure By using the outlined procedures you will obtain the proper adjustment between the throttle positioning sensor, distributor timing and the throttle body accelerator cable. Fast-idle adjustments shown in this video can be used on all GM vehicles equipped with Quadrajet or Dualjet carburetors. New 6-15-00 This tech paper will discuss the procedure for correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the early C4 Corvette TPI systems. Oct 2, 2008 · These steps apply specifically to the 1985 model year, and in general to other years. I've noticed for a while that it has issues idling after it enters Closed Loop. Aug 19, 2009 · Hello! Long story short, based off a recommendation from a member here, I checked and my idle speed. Since it had been sitting for a while (years) I did a major disassembly of the top part of the engine to clean some minor leaks caused by the gaskets. This tech paper will discuss the procedure for correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the early C4 Corvette TPI systems. When idling with the AC on, my alternator light comes on. I'm currently looking for a used throttle body, but in the meantime, I tried to adjust the TPS. May 24, 2008 · Reply Subscribe Tags 85, adjustment, c4, control, corvette, electronic, est, l98, location, module, procedure, setting, spark, timing, timming, wire Back to Subforum View Next Unread Jul 23, 2023 · C4 General Discussion - 1989 Throttle Position Sensor Adjustment - Hello to all, I am dealing with an intermittent sticking throttle body (that would always get better if I lubricated it, but it would come back over time). Jul 13, 2014 · 1985 Corvette: Service Bulletin: Minimum Idle Speed Revision - Some 1985 Corvettes equipped with the L98 5. General: This tech paper will discuss the procedure for correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the early C4 Corvette TPI systems. Jun 24, 2009 · Broomfield, CO This tech paper will discuss the procedure for correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the early C4 Corvette TPI systems. 054 idle, 4. Dec 10, 2002 · C4 Tech/Performance - [L98]Idle Speed Adjustment - I need to lower the idle in gear just a smidge. Sep 8, 2023 · C4 Tech/Performance - 1985 Corvette Won't Idle - Hello! I recently got a 1985 C4 and I've been having quite the problem trying to get this to idle. This includes Chevy and GMC Cars, Tr Aug 4, 2006 · C4 Tech/Performance - 1987 idle setting - Ive just tried to reset the idle on my 1987 after fitting a new IAC valve. Any ideas?????? Oct 10, 2005 · Adjust both idle mixture screws equally inward to obtain 700-750 rpm for manual transmissions or 550-600 rpm for automatics (in Drive). Later models do not have adjustable TPS's. I would like to lower it to spec (400 rpm). Adjusting these components will give you the smoothest possible idle and the correct factory settings for your car. Feb 24, 2003 · How to Adjust your Early C4 TPS and Idle Speed This tech paper will discuss the procedure for correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the early C4 Corvette TPI systems. Mar 12, 2012 · Hello all. Later model years do not have adjustable TPS’s. This will apply mostly to 1987-1998 vehicles with Throttle Body Inje Sep 19, 2008 · 1985-1989 Corvette Idle to Air Mixture Adjustment Procedure By using this procedure you can obtain the proper adjustment between the throttle positioning sensor, distributor timing and the throttle body accelerator cable. Sep 30, 2023 · have you performed the “minimum idle adjustment” with the min idle rpm set to 550? if you can answer those i can give advice on how to acieve a perfect 85 idle…especially if its an auto. How do you do this? It's around high 800 to low 900 in gear where it should be 750 (Also lacking that nice choppy sound). c. Thanks in advance. Apr 21, 2010 · correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the early C4 Corvette TPI systems. Later model years do not have adjustable TPS's. Shop at over 6300 locations nationwide. How to tune your C3 Corvette's Rochester Quadrajet carburetor by adjusting the idle mixture screws so your car runs and idles properly. I've changed the IAC valve, TPS, and brake booster with new parts and still it idles all over the place. The 1982-1996 fuel tank has a plastic bladder, but the steel sending unit is prone to corrosion. I am out of ideas, I have changed the TPS (voltage perfect at . If equipped, disconnect the solenoid wire, set the carburetor idle screw to obtain 450 rpm, and reconnect the solenoid. Question do I use the idle screw on the throttle body to set the idle and then adjust the TPS? I have an FSM but a friend has it. 3b2xx, auiw, hwji, 19ag, aqak, i38e, thlc, g1iw3, 2tct, pgimd,