What does the RPM gadge measue?

25

Asked by Apr 20, 2007 at 09:33 AM about the 1993 Ford Mustang LX Hatchback

Question type: Maintenance & Repair

My car is slowing down significantly.  I noticed this problem when my exshast manifold had a crack in it.  I was told that I go a while before replacing it because I didn't have the money.  Big MISTAKE!!!  The crack got so big that I had to replace the whole thing.  But every since then, my RPM gadge hasn't been working properly and now it doesn't even move.  Have I created a bigger problem for myself?

7 Answers

2,935

The exhaust manifold has nothing to do with the RPM gauge. The RPM gauge merely measures how many "rotations per minute" your engine makes. Most cars dont even have them. It will cause no harn to your car if the gauge doesnt work.

145

the more you let the crack go the more significant damage your doing to your engine. with a leak in the manifold your engine is losing back pressure. and without sufficient back pressure u can plan on having a lot more problems

75

The large crack in the exhaust manifold could have caused some further damage to your engine, but I doubt that it would overtly effect the RPM gauge after it is fixed. I think that there are just two problems that your going to have to look into.

2,150

That would have been a super opportunity to upgrade to a set of headers rather than the factory manifold.

7,055

if you want to fix the problem get under the hood and check out the distributor. the tach wire on my camaro attatched to the back of my distributor cap. its possible it came undo in your car also. although it may be different in mustangs

7,055

no rpm guage tells the number of rotations your crank makes per minute not tire rotation.

7,055

furthermore, if your tach wire is attached properly then you probably have a short somewhere. use an ohm meter to find out if the wire is grounded out or not. if the wire isnt grounded out and it is attached properly to the distributor then you might possibly have a broken guage. like others have said it wont hurt your car if it doesnt work properly

Your Answer

Add photo

Related Questions

Mustang

Looking for a Used Mustang in your area?

CarGurus has 45,194 nationwide Mustang listings starting at $2,000.

ZIP:

Search Ford Mustang Questions

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,090
#2 FordNut
FordNut
Reputation 1,230
#3 Bob Beaman
Bob Beaman
Reputation 1,140
View All

Related Models For Sale

Used Chevrolet Camaro
150 Great Deals out of 35,530 listings starting at $1,995
Used Chevrolet Corvette
135 Great Deals out of 20,645 listings starting at $3,499
Used Ford Mustang SVT Cobra
4 Great Deals out of 283 listings starting at $5,500
Used Ford F-150
2,418 Great Deals out of 209,612 listings starting at $895
Used BMW 3 Series
1,123 Great Deals out of 35,633 listings starting at $900
Used Jeep Wrangler
302 Great Deals out of 19,026 listings starting at $2,200
Used Honda Civic
525 Great Deals out of 80,276 listings starting at $558

Used Cars For Sale

2017 Ford Mustang For Sale
8 Great Deals out of 23,693 listings starting at $18,489
2016 Ford Mustang For Sale
86 Great Deals out of 4,838 listings starting at $16,977
2015 Ford Mustang For Sale
35 Great Deals out of 3,289 listings starting at $14,773
2014 Ford Mustang For Sale
39 Great Deals out of 2,813 listings starting at $9,499