Cruising speed stutter and RPM drop.

joshua022 · October 25th, 2011, 09:57 PM

Got my car back from a local shop today. I just bought it last week and had to get it to pass emissions. It had an OR xpipe and a smog pump delete kit.

But it ran fine just wouldn't pass emissions. The shop told me it could use a tune up, so the dig plugs, wires, an induction service, and now that I've gotten it back when I'm cruising down the road doesn't matter what gear it has a random hard stutter where it feels like its losing fuel or something and then it comes right back.

It doesn't seem to do it going uphill just while cruising along.

Rpms go down not up so I don't think the clutch is slipping.
Maybe a fuel pump issue or something I'm not real sure.

What do you think?

steveofire · October 25th, 2011, 10:27 PM

how often is it happening like every 2 or 15 mins ?

joshua022 · October 26th, 2011, 12:17 AM

Originally Posted by steveofire

how often is it happening like every 2 or 15 mins ?

if driving constantly then every 15-45 seconds

steveofire · October 26th, 2011, 12:45 AM

have you tried to see if there are any codes stored ? i am kinda mabey thinking either in your dizzy or tfi module also when was the fuel filter replace last if you know?

joshua022 · October 26th, 2011, 09:09 AM

No I'm not sure how to pull codes on these. I'm taking it back to the shop today to see what they think

steveofire · October 26th, 2011, 09:29 AM

you can pull codes really easy with the car either a paper clip or test light just google pull obd1 codes from ford

October 25th, 2011, 09:57 PM	#1
joshua022 Newbie Join Date: Mar 2011 Location: Douglasville, GA Posts: 49 iTrader: 0 reviews	Cruising speed stutter and RPM drop. Got my car back from a local shop today. I just bought it last week and had to get it to pass emissions. It had an OR xpipe and a smog pump delete kit. But it ran fine just wouldn't pass emissions. The shop told me it could use a tune up, so the dig plugs, wires, an induction service, and now that I've gotten it back when I'm cruising down the road doesn't matter what gear it has a random hard stutter where it feels like its losing fuel or something and then it comes right back. It doesn't seem to do it going uphill just while cruising along. Rpms go down not up so I don't think the clutch is slipping. Maybe a fuel pump issue or something I'm not real sure. What do you think? __________________ 87 mustang GT

October 26th, 2011, 09:09 AM	#5
joshua022 Newbie Join Date: Mar 2011 Location: Douglasville, GA Posts: 49 iTrader: 0 reviews	No I'm not sure how to pull codes on these. I'm taking it back to the shop today to see what they think __________________ 87 mustang GT

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October 25th, 2011, 10:27 PM	#2
steveofire Regular 1994 Mustang Cobra Join Date: Mar 2011 Location: Minnesota Posts: 185 iTrader: 0 reviews	how often is it happening like every 2 or 15 mins ?

October 26th, 2011, 12:45 AM	#4
steveofire Regular 1994 Mustang Cobra Join Date: Mar 2011 Location: Minnesota Posts: 185 iTrader: 0 reviews	have you tried to see if there are any codes stored ? i am kinda mabey thinking either in your dizzy or tfi module also when was the fuel filter replace last if you know?

October 26th, 2011, 09:29 AM	#6
steveofire Regular 1994 Mustang Cobra Join Date: Mar 2011 Location: Minnesota Posts: 185 iTrader: 0 reviews	you can pull codes really easy with the car either a paper clip or test light just google pull obd1 codes from ford

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