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From memory, in stock configuation, with everything working correctly, the first fan won't turn on until the coolant temp is well above 200F. However, when you turn on the A/C, the fans come on immediately. Ballpark, the first can turns on around 220F and the second fan around 240F when the...

Going from the stock 8.5" Ft/9.5" Rear wheels to 9.5" Ft/10.5" Rear wheels on my 96 made an immediately noticable and amazing difference in road tracking. One inch wider at both ends. Car now feels more like it's on rails calling for little steering wheel corrections. Just thought I'd share...

Okay, Paul, but you always resort to the ole garden hose trick. What I'd do is turn the car around, then wet the sh** out of it with water from the garden hose and let the car sit, checking it daily. The only similar thing I've seen from my son's 96 is the white powder coming from his...

Try parking the car in the other direction; switch from drive in to back in or back in to drive in to see if the white stuff continues to accumulate on the same side of the car. You'd at least know if it's side-specific. I don't recall if it's accumulating near the front tire or the rear, but...

You can use a digital volt meter to check for the resistance at the fuel level sender and adjust the sending unit accordingly. There may be a Tech Tip or Sticky here that shows the readings you should get from "empty" to "full". If not, I believe it's on Forums. CorvetteForum.com or just...

In order to buy R12 you'll need a license or, by law, the guy behind the counter can't sell it to you. If your car originally came with R12 you can convert it to 134a by buying an adapter kit that will allow the 134a cans to screw on. If your car came with 134a you should stick with it and...

The reason I mentioned the Schrader valve is that some fuel pressure gauges are designed to depress the Schrader valve when the gauge is screwed on, but other types of pressure gauges aren't designed that way. When using the second type, the Schrader valve has to be unscrewed and removed...

I don't know of a way to check the relays, but since they're so inexpensive buying new ones shouldn't be a problem. No, the coolant temp sender that's mounted in the passenger side head would only leak coolant. Below that, in the block, is the knock sensor but it, too, would only leak...

My FSM says there's a 30 AMP Power Accessory (PWR ACCY) circuit breaker IN THE fUSE BLOCK (right hand end of the instrument panel). This is for the door locks. The only two things I've in common so far is the THEFT DETERRENT CONTROLLER, which is identified as being located "Behind RH side of...

In my 86 FSM, it states that there is an Auxiliary Fuse Block behind the center of the multi-use center (dash) that has a fuse for the horn. There's also a Fusible link at the left hand rear in the engine compartment below the cruise control servo. I suspect that your 88 is the same as my...

Some fuel pressure gauges don't work well unless the Schrader valve is removed. My Accel gauge is that way, maybe yours needs to have the valve unscrewed. You should check the fuel pressure regulator for any sign of leakage. If fuel flows from the regulator or hose, it's bad. I'd check that...

To my knowledge that is no code for a faulty or failed fuel pump. If it goes bad, there's no code to be set. There are a few ways to test the pump for proper operation. One is to supply 12V to the 'G' terminal on the ALDL. If memory services, 'G' is on the lower row, the last ALDL opening to...

I forgot; whenever you have an electrical component that doesn't work, the first thing to check is the fuse. Yours are on the passenger side of the dash, accessed when the passenger side door is open. Each fuse location is marked, but you might as well pull and replace each fuse, one at a...

WELCOME ABOARD! It's be a while since I worked on a L98 engine, but from memory, there's a hose bib on the front, underside of the throttle body that vacuum hose connects to. I can't recall if it's for the EGR though, but check there to see if anything's connected. When you posted "right...

Also, on the TPI engines you can apply battery voltage to terminal "G" on the ALDL (Assembly Line Diagnostic Link), also referred to as ALCL, which is mounted under the dash, near where your right knee would be when sitting in the driver's seat. Terminal 'G' is the opening in the lower row...

Should be in the fuse panel marked FP. Guys, correct me if I'm wrong, but there's a back-up for the fuel pump that'll allow the pump to continue to run even if the relay fails as long as there is at least 4 psi (give or take) of oil pressure. In fact, the engine will start with a failed...

I suspect the Digital Dash. A friend of mine's 85 had the same problem and he ended up putting a battery cut off on his. Unfortunately, he's one of those kind of guys who doesn't take advice well; likes to think he can solve ALL his problems alone. So he never found the cause even though I...

Right. In the low 20s is correct. Much higher than that also minimizes the IAC's ability to raise the idle in response to additional load on the engine. You can adjust the IAC count by adjusting the minumum airflow adjustment on the TB. The more you open the butteflies using the set screw...

TTT Jake

Are your wheels stock? If so, are the lug nuts stock too? Torqued to spec? There's been a lot of talk lately about hub centric Vs stud centric mounting. Jake