My freind has a 87 Gt with a stock motor. No EGR or smog. When the engine is cold and just started up. The engine gets really ruff, intake pops, and power is really down,it all happens through every gear under about 3000 RPM. This all goes away once its up to operating temperature. New cap, rotor, plugs. Motor has about 130,000 on it. could be a lean mixture, bad O2 sensor? what does detonation feel like? Any help would be great, thanks.
Intake popping and sputtering
- Thread starter Mizark347
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Badlilstang
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detonation kinda sounds like rocker cladder or an exhuast leak but it has kind of a tinny sound. Have you checked his timing? Id also check the TPS sensor. 02 sensors are supposed to be a 60k mile tune up part but Ive seen them last much longer with no problems.
Dump the codes and see what the computer says is wrong…
Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.
See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html
Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.
See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html
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