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1993 Mazda RX-7 Touring — question: Windshield replaced and now there is wind noise

NorthPilot2Community StarterJan 22, 20261993 Mazda RX-7 TouringHouston
Windshield was replaced last week and now I hear a whistle around 55 mph that wasn't there before. Glass looks seated correctly. Is there a simple way to pinpoint an air leak before going back to the installer? I'm in Houston. Trying to diagnose before I book a shop.
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19 replies

OldSchoolSeller76Community StarterCommunity StarterJan 23, 2026permalink
I wouldn't throw parts yet. If a shop can't duplicate it on the 1993 Mazda RX-7, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. Just my two cents from doing this recently. Video is ugly but it shows the hesitation.
TorqueEnthusiast74Community StarterCommunity StarterJan 23, 2026permalink
This is usually cheaper to test than to guess. Two 1993 Mazda RX-7s can feel identical and have different causes, so measure before you copy someone else's repair. If the cheap test changes it, stop and reassess. Had a similar mess a couple years ago and that's what finally sorted it. Make the next action something you can finish this week. Checking again after work.
NorthMechanicish33Community StarterCommunity StarterJan 23, 2026permalink
Ask what changed right before it started. Move a coil or plug on the 1993 Mazda RX-7 if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. Parts cannon is a personality type I try to avoid. Cold start is when I can actually reproduce it.
NorthMechanicish33Community StarterCommunity StarterJan 23, 2026permalink
Intermittent stuff lies if you only catch it once. Get a real battery/charging test on the 1993 Mazda RX-7, not just resting voltage, before blaming a module. Save the big job until that test fails. On “7 touring — question: windshield replaced and,” that was the fork that mattered for me. Monthly payment math is how wallets disappear. If the story changes I'll post the new data.
OldSchoolSeller76Community StarterCommunity StarterJan 23, 2026permalink
Intermittent stuff lies if you only catch it once. Move a coil or plug on the 1993 Mazda RX-7 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. On “7 touring — question: windshield replaced and,” that was the fork that mattered for me. Not gospel, but it saved me a headache. I'm keeping receipts and dates in one folder.
ColdStartCollector64Community StarterCommunity StarterJan 23, 2026permalink
Start with the test that can prove you wrong. If a shop can't duplicate it on the 1993 Mazda RX-7, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. Stop there until you know. That's my plan before I call anyone.
JDMGuy85Community StarterCommunity StarterJan 23, 2026permalink
Log the conditions before you spend. Get a real battery/charging test on the 1993 Mazda RX-7, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. On “7 touring — question: windshield replaced and,” that was the fork that mattered for me. Learned this the expensive way on a previous car. Heat soak after errands is the other window.
TorqueEnthusiast74Community StarterCommunity StarterJan 23, 2026permalink
I wouldn't throw parts yet. Swap the cheap/easy piece first on the 1993 Mazda RX-7 and see if the fault moves. You'll know quickly if you're on the wrong tree. This is from a 1993 Mazda RX-7 in Houston. Had a similar mess a couple years ago and that's what finally sorted it. Your commute and mine probably aren't the same, but the test still applies. Not interested in a five-hour wait for a shrug.
ColdStartCollector64Community StarterCommunity StarterJan 23, 2026permalink
I'd want a measurement, not a hunch. Two 1993 Mazda RX-7s can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. Do that first. I'd rather be boring and correct. I'll poke at it this weekend.
JDMGuy85Community StarterCommunity StarterJan 23, 2026permalink
Start with the test that can prove you wrong. Loaded-suspension checks on the 1993 Mazda RX-7 catch play that a wheels-hanging inspection misses. If the cheap test changes it, stop and reassess. This is from a 1993 Mazda RX-7 in Houston. Had a similar mess a couple years ago and that's what finally sorted it. That's my plan before I call anyone.
NorthMechanicish33Community StarterCommunity StarterJan 23, 2026permalink
I hear you, though I'd still want a second check. Capture voltage while the 1993 Mazda RX-7 is actually failing — after it restarts you've lost the clue. That's the branch I'd chase this week. The universe charges extra for guessing. I'm keeping receipts and dates in one folder.
SmoothWrench66Community StarterCommunity StarterJan 23, 2026permalink
If it were in my driveway, two 1993 Mazda RX-7s can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. If you share a photo of the worksheet, easier to sanity-check. Doing the boring step first on purpose.
TorqueEnthusiast74Community StarterCommunity StarterJan 23, 2026permalink
This is usually cheaper to test than to guess. Move a coil or plug on the 1993 Mazda RX-7 if it's cylinder-specific and see whether the code follows. You'll know quickly if you're on the wrong tree. Learned this the expensive way on a previous car. Checking again after work.
RoadEnthusiast64Community StarterCommunity StarterJan 24, 2026permalink
Ask what changed right before it started. Swap the cheap/easy piece first on the 1993 Mazda RX-7 and see if the fault moves. You'll know quickly if you're on the wrong tree. That's the whole play. I'm keeping receipts and dates in one folder.
NorthPilot2Community StarterCommunity StarterJan 24, 2026permalink
Checked the easy stuff on the 1993 Mazda RX-7 and found one clue worth chasing before I book a shop. No warning lights, which is why I'm documenting it.
NorthMechanicish33Community StarterCommunity StarterJan 24, 2026permalink
I'd push back a little: A pressure test beats staring at a dry driveway if the 1993 Mazda RX-7 is losing coolant with no puddle. If the cheap test changes it, stop and reassess. The universe charges extra for guessing. Parking it somewhere I can hear it better next time.
ColdStartCollector64Community StarterCommunity StarterJan 24, 2026permalink
Intermittent stuff lies if you only catch it once. Capture voltage while the 1993 Mazda RX-7 is actually failing — after it restarts you've lost the clue. You'll know quickly if you're on the wrong tree. On “7 touring — question: windshield replaced and,” that was the fork that mattered for me. Do that first. I refuse to clear codes until someone else sees them.
NorthPilot2Community StarterCommunity StarterJan 24, 2026permalink
OP update: scanned the 1993 Mazda RX-7 again and still only have the one pending code, no new lights. If it repeats twice more I'll book time.
TorqueEnthusiast74Community StarterCommunity StarterJan 24, 2026permalink
I'd want a measurement, not a hunch. Two 1993 Mazda RX-7s can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. Had a similar mess a couple years ago and that's what finally sorted it. If this is nothing, great. I want that in data.
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