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Search: Posts Made By: mrlmd
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Forum: C4s for Sale/Wanted
04-17-2024, 12:54 PM
Replies: 8
Views: 615
Posted By mrlmd

Sorry, I looked at that ad a few times and all I...

Sorry, I looked at that ad a few times and all I saw were pictures, there was no writing on the bottom below the last pic before I wrote that comment.
Forum: C4s for Sale/Wanted
04-16-2024, 09:03 PM
Replies: 8
Views: 615
Posted By mrlmd

Going to post a price?

Going to post a price?
Forum: C4 General Discussion
03-25-2024, 04:27 PM
Replies: 11
Views: 288
Posted By mrlmd

That system is 32 years old and the most likely...

That system is 32 years old and the most likely reason for your problem is that the electrolytic capacitors in the speaker amplifiers have deteriorated (leaked) and are shot. They frequently can be...
Forum: C4 Tech/Performance
02-23-2024, 03:03 PM
Replies: 43
Views: 1,569
Posted By mrlmd

BetVette - that one is for a brake bleeder,...

BetVette - that one is for a brake bleeder, nowhere big enough for an oil change. I use the one like Chumpvette showed.
My LT5 holds 9 qts. of oil, much larger than your car too.
Forum: C4 Tech/Performance
02-22-2024, 05:40 PM
Replies: 43
Views: 1,569
Posted By mrlmd

I use a Mitivac for my ZR-1and it works great,...

I use a Mitivac for my ZR-1and it works great, and I get almost every drop of oil out, whatever is left inside is of no consequence. No jacking, no mess, no cleanup. Of course my oil filter is...
Forum: C4 ZR-1 Discussion
12-24-2023, 12:36 PM
Replies: 2
Views: 364
Posted By mrlmd

This morning that whistle is only heard at dead...

This morning that whistle is only heard at dead slow idle, as soon as you rev up the engine even slightly it disappears. So I think it's related to the belt, maybe exacerbated because of the cooler...
Forum: C4 ZR-1 Discussion
12-23-2023, 05:29 PM
Replies: 2
Views: 364
Posted By mrlmd

New engine whine/whistle

I changed my oil/filter today and then ran the engine to circulate it around before checking the level again, and heard this high pitched whisltle/whine when the hood was open. Don't really hear it...
Forum: C4 ZR-1 Discussion
11-28-2023, 04:59 PM
Replies: 14
Views: 651
Posted By mrlmd

What's wrong with touch-up paint?

What's wrong with touch-up paint?
Forum: C4 General Discussion
11-08-2023, 08:40 PM
Replies: 5
Views: 417
Posted By mrlmd

There are numerous videos on YouTube and other...

There are numerous videos on YouTube and other sites on why this happens and how to fix it and there are tools commercially available to release the latches and open the hood.
First of all, a little...
Forum: C4 Tech/Performance
10-25-2023, 03:12 PM
Replies: 28
Views: 633
Posted By mrlmd

NO, you are testing the module itself, not the...

NO, you are testing the module itself, not the lead coming from the wire harness. Connect the test leads to the spades on the module where the red and purple leads attach. There should be no...
Forum: C4 Tech/Performance
10-25-2023, 02:16 PM
Replies: 28
Views: 633
Posted By mrlmd

Did you test it like I said, from the terminal...

Did you test it like I said, from the terminal from the hot red input lead and then to the terminal to the purple output lead going to the blower motor? The rest of the terminals don't count for this...
Forum: C4 Tech/Performance
10-21-2023, 11:18 AM
Replies: 28
Views: 633
Posted By mrlmd

You can check that module very easily. Check for...

You can check that module very easily. Check for continuity between the terminal for the red hot lead input to the module and the terminal for the purple hot wire feed out to the blower motor. If...
Forum: C4 ZR-1 Discussion
10-20-2023, 01:07 PM
Replies: 4
Views: 321
Posted By mrlmd

Also posted on another thread on same topic -- ...

Also posted on another thread on same topic --

FYI, I just replaced my blower control module with one I bought off Amazon for $17 and it works perfectly. My blower motor no longer runs...
Forum: C4 Tech/Performance
10-20-2023, 01:04 PM
Replies: 28
Views: 633
Posted By mrlmd

FYI, I just replaced my blower control module...

FYI, I just replaced my blower control module with one I bought off Amazon for $17 and it works perfectly. My blower motor no longer runs continuously and the speed changes using the controls are...
Forum: C4 ZR-1 Discussion
09-25-2023, 11:02 AM
Replies: 4
Views: 321
Posted By mrlmd

Found one of those, for 20% of ones marked for C4...

Found one of those, for 20% of ones marked for C4 'vettes, exact same part. No "Corvette Tax" on a Jeep part.
And I know the blower control module is defective because there is a dead short between...
Forum: C4 ZR-1 Discussion
09-24-2023, 04:39 PM
Replies: 4
Views: 321
Posted By mrlmd

'90 ZR-1 Blower control modules

Today after a ride when I stopped and turned off the car ('90ZR-1), the AC blower motor continued to run with no effect on it from the control buttons. The only way to turn it off is either to...
Forum: C4 General Discussion
09-24-2023, 12:30 PM
Replies: 8
Views: 454
Posted By mrlmd

You are not alone in his - it happens to every...

You are not alone in his - it happens to every car with AC, you just never noticed this before. And it happens wherever there is AC, like in your home. It's moisture being removed out of the air and...
Forum: C4 General Discussion
09-18-2023, 02:45 PM
Replies: 12
Views: 344
Posted By mrlmd

Remove the molding over the top of the carpet and...

Remove the molding over the top of the carpet and peel back the carpet to get to the bolts holding the speaker on. You just can't pull it out of the hole.
Forum: C4 Tech/Performance
08-19-2023, 02:59 PM
Replies: 7
Views: 423
Posted By mrlmd

What's the hot wire attached to, the AC...

What's the hot wire attached to, the AC compressor clutch? And how do you turn it on, have a separate switch for that?
Forum: C4 General Discussion
08-19-2023, 02:55 PM
Replies: 23
Views: 682
Posted By mrlmd

Sounds to me like he just replaced the pump, not...

Sounds to me like he just replaced the pump, not the sender, float and arm, etc.
If he replaced the whole entire unit, that's a different issue, more likely related to the bend in the arm.
Forum: C4 Tech/Performance
08-18-2023, 01:36 PM
Replies: 7
Views: 423
Posted By mrlmd

The 09 code means the system is low on Freon. The...

The 09 code means the system is low on Freon. The compressor will not turn on if the Freon is low, and that is number one. And you cannot refill it unless the compressor is running, so you have to...
Forum: C4 General Discussion
08-18-2023, 01:26 PM
Replies: 23
Views: 682
Posted By mrlmd

The coils in the fuel sender may have deposits on...

The coils in the fuel sender may have deposits on them interfering with the potentiometer readings feeding the gauge. Either remove it again and gently clean them off or put a container of Techron in...
Forum: C4 General Discussion
08-15-2023, 01:22 PM
Replies: 3
Views: 427
Posted By mrlmd

So now you have no directional signals or do they...

So now you have no directional signals or do they shine through the fabric?
Forum: C4 ZR-1 Discussion
07-29-2023, 08:53 AM
Replies: 7
Views: 653
Posted By mrlmd

That bag is for the tire you removed when you put...

That bag is for the tire you removed when you put the spare on, so that when you put it in the rear hatch area, you didn't dirty up that whole space.
Forum: C4 General Discussion
07-28-2023, 12:29 PM
Replies: 3
Views: 380
Posted By mrlmd

This is the "dreaded no start problem", a well...

This is the "dreaded no start problem", a well known issue, and there are numerous threads on this forum and the ZR-1 Forum on how to deal with this. It is usually either a clutch safety switch issue...
Showing results 1 to 25 of 485
 
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