OK...

First off: my car has never gotten anywhere near 220 degrees, even in the heat of NJ summer. Now it is cool out and my car gets up to 220 on the highway and even worse around town!!! What is going on?? I thought my coolant might be low, but it is full. What could be causing this all of the sudden? Won't this make my spark plugs no good if this keeps up?

Second of all: When I first got my car up until about 1 month ago, I would start it for the first time of any given day and it would fire and rev to 2000rpm and make its way down to its idle at 750rpm. Now, when I start it for the first time of the day it will crank for awhile and then fire and go straight to 750rpm as if it doesnt even want to run. Then when u step on the gas it hesitates and is real sluggish until it warms up which takes 1-2 minutes.

What could be causing these problems??? Any info will help.

Thanks...
J.R.

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1989 IROC-Z
350c.i. TPI
rebuilt 700R4 with shift kit
3'' Monza Pacesetter cat back exhaust (minus the muffler)[SOUNDS OF THIS ON MY WEBPAGE]
new dual cats
3.23 Posi rear
hypertech chip
under drive pulleys
adjustable fuel pressure regulator
K&N Air Filters
Excalibur alarm, keyless entry and remote start
new:
struts, shocks, bearings, distributor, cap, rotor, alternator, battery, regulator
245 ZR16 50 Tires, Rotors and brake pads all the way around

Go to my webpage to find out more about it.
You can also see pictures, and hear sounds as well.
http://go.to/iroc-z

AOL IMer: JRShotliff

 

back to the top.... cause i need help with this!!!

 

Whats up,
First off about your cooling problem, see if your AIR DAM is still intact under you car, close to your radiator. That could be you problem, there.. very common for these to break off, (Damn speed bumps). Other things i would consider is to check to see if there is anything inbetween your radiator and air conditioning condenser.
As far as the idle question, im going through something similiar.. my car will start after sitting for a while and 5 seconds after it starts the rpms go up and down, up and down, up and down.. its annoying as hell. Anyone have any insight to our idle probs?????

Thanks
Joe

 

As for the idle recheck the timing.
Mine was doing that and my timing was out!
Good Luck!

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89 IROC 350 Auto
TRUE DUAL Exhaust
Edelbrock Performer Aluminum Heads
ZZ9 Cam
TPIS Level 5 Chip
14.01 @ 97.0mph with 2.77's gears

 

89IROC, it sound as if the IAC is trying to crap out on you. Remove and clean it and the chamber it goes into. Secondly, if electric fans are they coming on? Also the water pumps on sbc's do not seem to last very long.
Joe, your MAP sensor maybe going, my engine would act similarly to what you described and that is what it turned out to be.

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"84Z28/'91 305TPI comp cam flowmaster TB coolant bypass/shutoff valve to heater core MAT relocated Ram-Air(home-made) gutted air-box IROC ground effects/wheels GY245/50's 700R4 superior shift kit/ corvette servo(excellent shift kit BTW) Rebuilt engine and transplanted it myself. Love this engine!
LOW performance people should drive low performance vehicles!