Non start at times?! HELP!!

jonosranger · 08-10-2009, 12:22 PM

Ok guys i need some help with this. My car has been getting worse. Some times you can go outside and go to start it and it starts within a half a rotation of the engine. And other times it acts like it is flooded and you have to mash the gas pedal to the floor to get it to start. And it kinda stumbles for a second and runs fine afterword. And when its cold it will idle fine. But when its hot it will idle roll really bad untill it dies. check engine is not on and yes it works lol any help would be great

EHardy1971 · 08-10-2009, 03:51 PM

Sounds like either the coil breaking down,or the TFI module.

93cobra1928 · 08-10-2009, 06:05 PM

Just because the check engine light isn't on doesn't mean that no codes are stored. I would pull the codes and diagnose from there.

SlowJoe · 08-10-2009, 06:14 PM

650 DP

jonosranger · 08-11-2009, 06:38 AM

Quote:

Originally Posted by joecoupe

650 DP

I believe your right on this one lol Im bout ready to. That way it will idle and be in the 7s on motor

U need to find me a intake.

coupe · 08-11-2009, 08:56 AM

Is this the '90 model from your sig? Or the '88? If it's a MASS AIR car, I would start by cleaning the element in the meter with some carb-spray. Then do the basics first, like plugs, wires, cap, rotor...and look at the TPS voltage. These simple things might fix it.

There is also something called a "Thermactor Air Bypass" solenoid which is picky about cold-starts. It's a little solenoid with a grey cap on it, located on the back side of the passenger-side shock-tower (see pic below). The little cap can be popped off and there is a foam-filter inside... it's glued down lightly, but you can easily take it off... blow the dust out of it with an air-blower and re-install with the cap back on. For some reason, if those things are dirty, they can cause havoc.

jonosranger · 08-11-2009, 09:18 AM

Yes it is the 90. Its not stock so that dont help maters any. All of the plugs,cap, rotor and tune up stuff is fairly new. I have cleaned the maf a few times. And i dont the have "Thermactor Air Bypass" solenoid or any of the smog stuff.

TheJeanyus · 08-11-2009, 09:24 AM

Have you cleaned the IAC valve? Checked for vaccum leaks?

jonosranger · 08-11-2009, 09:46 AM

yes i have done those two things

jonosranger · 08-11-2009, 05:47 PM

anybody have anything? I cant even drive my car. Because it dies so much

08-10-2009, 12:22 PM	#1
jonosranger Boost! Its wats 4 dinner Join Date: Mar 2009 Location: Bridgeport,AL Posts: 811	Non start at times?! HELP!! Ok guys i need some help with this. My car has been getting worse. Some times you can go outside and go to start it and it starts within a half a rotation of the engine. And other times it acts like it is flooded and you have to mash the gas pedal to the floor to get it to start. And it kinda stumbles for a second and runs fine afterword. And when its cold it will idle fine. But when its hot it will idle roll really bad untill it dies. check engine is not on and yes it works lol any help would be great __________________ 06 F150 crew cab 4x4 leveled on 35s 94 Lincoln Mark VIII, 3000 stall, shift kit, 3.73, hub swaped, 98 cobra wheels 06 yLincoln Zephyr- Wifeys DD

08-10-2009, 03:51 PM	#2
EHardy1971 Trunk Monkey Join Date: Jun 2007 Location: Home Posts: 5,708	Sounds like either the coil breaking down,or the TFI module. __________________ Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS

08-10-2009, 06:05 PM	#3
93cobra1928 Dazed and Confused Join Date: Mar 2009 Location: Northport, Al Posts: 778	Just because the check engine light isn't on doesn't mean that no codes are stored. I would pull the codes and diagnose from there. __________________ Proud owner of 93 Cobra #1928 306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards

08-10-2009, 06:14 PM	#4
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	650 DP __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

08-11-2009, 08:56 AM	#6
coupe Super Moderator Join Date: Dec 2004 Posts: 6,313	Is this the '90 model from your sig? Or the '88? If it's a MASS AIR car, I would start by cleaning the element in the meter with some carb-spray. Then do the basics first, like plugs, wires, cap, rotor...and look at the TPS voltage. These simple things might fix it. There is also something called a "Thermactor Air Bypass" solenoid which is picky about cold-starts. It's a little solenoid with a grey cap on it, located on the back side of the passenger-side shock-tower (see pic below). The little cap can be popped off and there is a foam-filter inside... it's glued down lightly, but you can easily take it off... blow the dust out of it with an air-blower and re-install with the cap back on. For some reason, if those things are dirty, they can cause havoc. __________________ " If you can't explain it simply, you don't understand it well enough. " - Albert Einstein

08-11-2009, 09:18 AM	#7
jonosranger Boost! Its wats 4 dinner Join Date: Mar 2009 Location: Bridgeport,AL Posts: 811	Yes it is the 90. Its not stock so that dont help maters any. All of the plugs,cap, rotor and tune up stuff is fairly new. I have cleaned the maf a few times. And i dont the have "Thermactor Air Bypass" solenoid or any of the smog stuff. __________________ 06 F150 crew cab 4x4 leveled on 35s 94 Lincoln Mark VIII, 3000 stall, shift kit, 3.73, hub swaped, 98 cobra wheels 06 yLincoln Zephyr- Wifeys DD Last edited by jonosranger; 08-11-2009 at 05:46 PM. Reason: cause my car is a pos

08-11-2009, 09:24 AM	#8
TheJeanyus Administrator Join Date: Dec 2004 Location: Huntsville, AL Posts: 14,774	Have you cleaned the IAC valve? Checked for vaccum leaks? __________________ 1998 Mustang GT Coupe - World's Slowest Racecar 2005 Toyota 4Runner SR5 V8 2013 Volkswagen Jetta Sportwagen TDI

08-11-2009, 09:46 AM	#9
jonosranger Boost! Its wats 4 dinner Join Date: Mar 2009 Location: Bridgeport,AL Posts: 811	yes i have done those two things __________________ 06 F150 crew cab 4x4 leveled on 35s 94 Lincoln Mark VIII, 3000 stall, shift kit, 3.73, hub swaped, 98 cobra wheels 06 yLincoln Zephyr- Wifeys DD

08-11-2009, 05:47 PM	#10
jonosranger Boost! Its wats 4 dinner Join Date: Mar 2009 Location: Bridgeport,AL Posts: 811	anybody have anything? I cant even drive my car. Because it dies so much __________________ 06 F150 crew cab 4x4 leveled on 35s 94 Lincoln Mark VIII, 3000 stall, shift kit, 3.73, hub swaped, 98 cobra wheels 06 yLincoln Zephyr- Wifeys DD