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#1
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Engine shuts off when coming to a stop
My '90 Miata, which I have owned for one month has 91,500 miles on it.
It runs great except when it's warmed up and I am coming to a stop, the engine shuts off. I can restart it and it starts and runs fine, tach steady at about 750 rpm, then I take off and when coming to the next stop, it will shut off again. I'm thinking maybe a new gas filter. Anyone had this problem or knows how to fix it. I've looked at the Miata Enthusiast's Manual and haven't found the answer. Thanks, Wileyman |
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#2
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Engine shuts off when coming to a stop
While I have a Miata, I have not had that, or ANY, problem with it.
I DID, however, just have and fix that exact same problem with my Chevy chassis RV. About 2 years ago, I had a very similar problem with my GMC Suburban. Both vehicles suffered from bad, in-the-tank, electric fuel pumps. The Chevy chassis RV only had the problem when the gas tank was less than 1/2 full.. After replacing the pumps and ALL in-line fuel filters, I have had no problems. Please let us know what it is. Tim "Wileyman" > wrote in message oups.com... > My '90 Miata, which I have owned for one month has 91,500 miles on it. > It runs great except when it's warmed up and I am coming to a stop, the > engine shuts off. I can restart it and it starts and runs fine, tach > steady at about 750 rpm, then I take off and when coming to the next > stop, it will shut off again. > > I'm thinking maybe a new gas filter. Anyone had this problem or knows > how to fix it. I've looked at the Miata Enthusiast's Manual and > haven't found the answer. Thanks, Wileyman > |
#3
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Engine shuts off when coming to a stop
At idle--
Fuel usage is low, and the voltage to the fuel pump may also be low. A failing pump may quit at a lower than nomal input voltage. (Usually a sign of a battery or alternator problem.) I'd jumper the tens pin, and see what happens. Since this is a 90, a lot of things are suspect, based upon age and miles. "Healeyman" > wrote in message news:CN45g.1546$6d4.916@trnddc03... > While I have a Miata, I have not had that, or ANY, problem with it. > > I DID, however, just have and fix that exact same problem with my Chevy > chassis RV. About 2 years ago, I had a very similar problem with my GMC > Suburban. > > Both vehicles suffered from bad, in-the-tank, electric fuel pumps. The > Chevy chassis RV only had the problem when the gas tank was less than 1/2 > full.. > > After replacing the pumps and ALL in-line fuel filters, I have had no > problems. > > Please let us know what it is. > > Tim > > > > > > > > > > "Wileyman" > wrote in message > oups.com... > > My '90 Miata, which I have owned for one month has 91,500 miles on it. > > It runs great except when it's warmed up and I am coming to a stop, the > > engine shuts off. I can restart it and it starts and runs fine, tach > > steady at about 750 rpm, then I take off and when coming to the next > > stop, it will shut off again. > > > > I'm thinking maybe a new gas filter. Anyone had this problem or knows > > how to fix it. I've looked at the Miata Enthusiast's Manual and > > haven't found the answer. Thanks, Wileyman > > > > |
#4
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Engine shuts off when coming to a stop
If all else fails, have the compression (include blowdown) checked.
Miata engines may be worn to the point that the compression is down and it's remotely possible that the oil rings are still OK. Usually, oil usage is a good key, even if no smoke is noticed. "Chris D'Agnolo" > wrote in message ... > I think a good check over the vacuum lines might be a good idea, if they're > looking old and dry with some cracking maybe you should replace them. Maybe > a long shot but it's a cheap one. > > Chris > 99BBB > > "Chuck" > wrote in message > news:QQc5g.17083$ZW3.2870@dukeread04... > > At idle-- > > Fuel usage is low, and the voltage to the fuel pump may also be low. > > > > A failing pump may quit at a lower than nomal input voltage. (Usually a > > sign > > of a battery or alternator problem.) > > > > I'd jumper the tens pin, and see what happens. > > Since this is a 90, a lot of things are suspect, based upon age and miles. > > > > "Healeyman" > wrote in message > > news:CN45g.1546$6d4.916@trnddc03... > >> While I have a Miata, I have not had that, or ANY, problem with it. > >> > >> I DID, however, just have and fix that exact same problem with my Chevy > >> chassis RV. About 2 years ago, I had a very similar problem with my GMC > >> Suburban. > >> > >> Both vehicles suffered from bad, in-the-tank, electric fuel pumps. The > >> Chevy chassis RV only had the problem when the gas tank was less than 1/2 > >> full.. > >> > >> After replacing the pumps and ALL in-line fuel filters, I have had no > >> problems. > >> > >> Please let us know what it is. > >> > >> Tim > >> > >> > >> > >> > >> > >> > >> > >> > >> > >> "Wileyman" > wrote in message > >> oups.com... > >> > My '90 Miata, which I have owned for one month has 91,500 miles on it. > >> > It runs great except when it's warmed up and I am coming to a stop, the > >> > engine shuts off. I can restart it and it starts and runs fine, tach > >> > steady at about 750 rpm, then I take off and when coming to the next > >> > stop, it will shut off again. > >> > > >> > I'm thinking maybe a new gas filter. Anyone had this problem or knows > >> > how to fix it. I've looked at the Miata Enthusiast's Manual and > >> > haven't found the answer. Thanks, Wileyman > >> > > >> > >> > > > > > > |
#5
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Engine shuts off when coming to a stop
I have a 1990 Miata that I've owned for eight years and that has started
to exhibit the same problem, along with occasional difficulty changing gears. It's in the shop at the moment, and it's looking as if the problem was a leaking clutch slave cylinder. Apparently, the leak resulted in the clutch not being fully disengaged when I pushed down the clutch pedal. The mechanic is going to install a new component, to see if that takes care of the problem. However, not having the clutch completely disengaged would explain why the engine would occasionally stall when I was coming to a stop, and why the gears would grind when I was changing them. See http://www.miata.net/garage/slavecyl.html for more details. "Chuck" > wrote in message news:5tB5g.57144$IZ2.36615@dukeread07... > If all else fails, have the compression (include blowdown) checked. > Miata engines may be worn to the point that the compression is down and > it's > remotely possible that the oil rings are still OK. > Usually, oil usage is a good key, even if no smoke is noticed. > "Chris D'Agnolo" > wrote in message > ... >> I think a good check over the vacuum lines might be a good idea, if > they're >> looking old and dry with some cracking maybe you should replace them. > Maybe >> a long shot but it's a cheap one. >> >> Chris >> 99BBB >> >> "Chuck" > wrote in message >> news:QQc5g.17083$ZW3.2870@dukeread04... >> > At idle-- >> > Fuel usage is low, and the voltage to the fuel pump may also be low. >> > >> > A failing pump may quit at a lower than nomal input voltage. (Usually a >> > sign >> > of a battery or alternator problem.) >> > >> > I'd jumper the tens pin, and see what happens. >> > Since this is a 90, a lot of things are suspect, based upon age and > miles. >> > >> > "Healeyman" > wrote in message >> > news:CN45g.1546$6d4.916@trnddc03... >> >> While I have a Miata, I have not had that, or ANY, problem with it. >> >> >> >> I DID, however, just have and fix that exact same problem with my >> >> Chevy >> >> chassis RV. About 2 years ago, I had a very similar problem with my > GMC >> >> Suburban. >> >> >> >> Both vehicles suffered from bad, in-the-tank, electric fuel pumps. >> >> The >> >> Chevy chassis RV only had the problem when the gas tank was less than > 1/2 >> >> full.. >> >> >> >> After replacing the pumps and ALL in-line fuel filters, I have had no >> >> problems. >> >> >> >> Please let us know what it is. >> >> >> >> Tim >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> "Wileyman" > wrote in message >> >> oups.com... >> >> > My '90 Miata, which I have owned for one month has 91,500 miles on > it. >> >> > It runs great except when it's warmed up and I am coming to a stop, > the >> >> > engine shuts off. I can restart it and it starts and runs fine, > tach >> >> > steady at about 750 rpm, then I take off and when coming to the next >> >> > stop, it will shut off again. >> >> > >> >> > I'm thinking maybe a new gas filter. Anyone had this problem or > knows >> >> > how to fix it. I've looked at the Miata Enthusiast's Manual and >> >> > haven't found the answer. Thanks, Wileyman >> >> > >> >> >> >> >> > >> > >> >> > > |
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