Nice looking C4, I also owned the same year and your car is the 3rd one I ever saw bottom customer running board, look at post #4 my car I also installed one like yours back in the day. I will say they made poorly, easy to install, and still think it makes the C4 pop.

 

No major updates, been making the most of the waning ski season here in PA, so not much garage time.

I was able to get my quick jacks working, not a perfect fit for the C4 but with the extension trays that I ordered this morning, they should end up working nicely. The jack points on these cars are surprisingly close together.

I pulled the car out into the sun over the weekend and was able to drop the top for the first time, the rear window is not as brittle as I had feared, so no drama there.



Last night I changed the oil, swapped the front wheels so they’re now on the correct sides, installed the small hood struts that it seems they stopped in ‘88, and gave the undercarriage a good once-over. No major leaks or any notable rust which is great news.




A friend will be picking up a second set of salad shooters from marketplace that are close to him, which should take care of my bent wheel issue.

Other than that, unrelated, but with the warmup here in the northeast I was able to get my ‘79 C10 out yesterday for the first in a few months, so that was nice as well.



More to come, next task is likely troubleshooting the MAF code, as the car is occasionally running absolutely pig rich. Useful for mosquito repellant, but probably not helpful otherwise.

 

Still haven't had a ton of time to spend on the car, but some updates:
- Replaced the bent wheel with one from Marketplace
- Installed new Conti ExtremeContact Sport 02 tires
- Finally registered the car
- Took it for about a 10 mile drive last night to shake out any other demons (none showed themselves, hooray)
- Decided that the Flowmaster mufflers will be going away ASAP, drone under 2k rpm is horrific.

I should have most of the day on Sunday to dig into the car, will be doing some diag on the MAF code, and as much as I can get done of plugs/wires/cap/rotor/fuel filter/trans fluid & filter/coolant hoses & flush/serp belt.

New rubber and some quick pictures from last night.

 

It's been a minute, but finally had some time to spend on the car this past Sunday. Plugs, wires, cap, rotor, radiator hoses, the short hose to the throttle body, coolant, thermostat, serp belt, air filter all replaced. The cooling system is definitely a bit rusty inside, so planning to run the car for a bit, and then do a full flush. Have a small seep at the thermostat, so will pull that off and flatten the housing on the belt sander when I flush the coolant. It's a slow enough leak that it's fine for now.

Was able to drive the car to work a couple times this week, total of about 150 miles, and other than a surging/stumbling idle at times, it's running and driving great. No drivability issues once it's off idle. Shifts great, drive straight, feels tight. Still have the MAF code to chase down, will be doing that next. Anything else in particular to look at on these cars for a surging idle? Figure I'll clean the TB and IAC valve to start.

A few things I noticed after driving it around a bit:
- Turn signals and all lights work but the turn signal indicator arrows on the dash don't, I assume that's just bulbs?
- Wipers aren't working.
- Fore/aft and tilt work for the power driver's seat, but the back tilt is not working. Passenger power seat not working at all.
- Cruise control works.
- Power antenna works.
- The A/C has been converted to R134a and the clutch will engage the compressor for about 1-2 seconds at a time and cycle like that. Assume it's low on refrigerant, buddy has a recharge machine so will give that a shot soon.
- The Flowmaster exhaust drone is heinous. I think it's louder in the car than out. Are there any particular mufflers that people feel work well with these cars/specifically the convertibles?

All in all, this car is a blast. Cruises at modern highway speeds without a second thought, handles nicely for a fairly large convertible, steering is very pleasantly heavy with the nice small wheel. Stoked to put some miles on it and chip away at the small things.

 

They are fun cars to drive, and eventually you will have all of the little issues out of the way. As for the drone, there are a couple of ways to make it better, a full Corsa cat back, which is $$$, or you can go with a stock replacement aftermarket muffler like the Walker Quiet-Flow which will return it to stock sound, which is quiet.