Tremek Car Video Forum

robz95xj · 17 Feb 2008, 04:30 pm

any idea what could cause this?its fine when warmed up but runs like shit when cold.im sure its a sensor of sort but not sure where to start, is my truck(92 5.0 f150)

v_dub_ya · 17 Feb 2008, 04:59 pm

On some of our old meter reading trucks (90-93) F150s the throttle body would get really gunked up which caused some rough idling. We used throttle body cleaner and put it on a rag and rubbed it inside the throttle body and on the butterfly and then, with the engine running, you can spray it directly into the throttle body.

Could also look towards the coolant temp sensor.

robz95xj · 22 Feb 2008, 08:29 pm

dub ya any sugestions on cleaning the TPS and or IAC, dint want to replace em since its like $77 for one and $40 for the other

ford_racer · 13 Mar 2008, 08:15 pm

Get some Mass Air cleaner. DO NOT USE CARB CLEANER. It will **** up your electrical contacts.

Take the IAC off, and empty half the bottle into the thing. Give it some time to dry, re-install, and test.

Do the same with the MAF if you thing it's the problem.

However, if the IAC is the problem, cleaning it is only a temp fix. You'll have to get a new one eventually.

Marek · 24 Mar 2008, 10:41 am

your AMM or MAF might be defective. If you want to be sure that it is in fact busted, when your car is on on idle, unplug the AMM/MAF and if the idle isnt affected whatsoever then its busted.

good luck buck!

robz95xj · 24 Mar 2008, 02:05 pm

cleaned the throttlebody with throttle body cleaner and it fixed the problem, now to fix the bad gas milage

American Psycho · 24 Mar 2008, 07:39 pm

obviously do a full tune up.

- Plugs bosche platinums+4 $6 each and go for up too 100,000 miles
- Wires
- Cap/rotor
- Oil change
- Fuel Filter
- Air filer
- Adjust your tire pressure
- easy on the fuel pedal

and see where your timing and TPS is at.

Soup · 24 Mar 2008, 08:17 pm

fuel economy fix: trade the f-150 for an escort.

American Psycho · 24 Mar 2008, 08:44 pm

Quote:

Originally Posted by Soul

fuel economy fix: trade the f-150 for an escort.

quick brilliant answer

X2

bmxer99 · 24 Mar 2008, 09:04 pm

i think i found the problem, oh yeah its a ford

01mmmz28 · 25 Mar 2008, 04:25 am

there is a small hole on the throttle body blade that allows air to come in at idle. Make sure this small hole is not clogged up or blocked in any way. If it is only during the cold, moisture may be getting in there somehow and causing the maf to read poorly upon cold start up. clean the maf and the throttle body and see is that helps. If not, try the fuel filter, mine acted up during the cold before, because it was dirty and needed replacing.

robz95xj · 25 Mar 2008, 03:14 pm

am thinkin of trying plugs, wires cap and rotor and O2 sensor, am really about done puttin money into it need to get the jeep back together

robz95xj · 25 Mar 2008, 03:15 pm

Quote:

Originally Posted by Soup

fuel economy fix: trade the f-150 for an escort.

find me a escort that can haul jeep parts, as in big ass tires and axles

American Psycho · 25 Mar 2008, 03:19 pm

Quote:

Originally Posted by 01mmmz28

there is a small hole on the throttle body blade that allows air to come in at idle. Make sure this small hole is not clogged up or blocked in any way. If it is only during the cold, moisture may be getting in there somehow and causing the maf to read poorly upon cold start up. clean the maf and the throttle body and see is that helps. If not, try the fuel filter, mine acted up during the cold before, because it was dirty and needed replacing.

forgot about the hole. normally just enlarge it a bit.

Soup · 25 Mar 2008, 09:08 pm

Get a wagon. I fit all four of the 30" tires for my samurai into my sedan corolla no problem, a wagon could fit tons more.

17 Feb 2008, 04:30 pm	#1 (permalink)
robz95xj Oooo Pretty Bumper Join Date: Mar 2005 Location: I'm Thinkin Of Takin' A Shit On Ramseys Trans Am Posts: 12,859 robz95xj's Gallery	Rough Cold Idle any idea what could cause this?its fine when warmed up but runs like shit when cold.im sure its a sensor of sort but not sure where to start, is my truck(92 5.0 f150) __________________ 1995 Cherokee Sport 6", 35's 1992 Ford F-150, 2WD, 5.0 and now rollin on MONSTER 31's

17 Feb 2008, 04:59 pm	#2 (permalink)
v_dub_ya Pulling the belts tight Join Date: Jan 2005 Location: Racing in an autocross event :) Posts: 10,489 v_dub_ya's Gallery	Re: Rough Cold Idle On some of our old meter reading trucks (90-93) F150s the throttle body would get really gunked up which caused some rough idling. We used throttle body cleaner and put it on a rag and rubbed it inside the throttle body and on the butterfly and then, with the engine running, you can spray it directly into the throttle body. Could also look towards the coolant temp sensor. __________________

22 Feb 2008, 08:29 pm	#3 (permalink)
robz95xj Oooo Pretty Bumper Join Date: Mar 2005 Location: I'm Thinkin Of Takin' A Shit On Ramseys Trans Am Posts: 12,859 robz95xj's Gallery	Re: Rough Cold Idle dub ya any sugestions on cleaning the TPS and or IAC, dint want to replace em since its like $77 for one and $40 for the other __________________ 1995 Cherokee Sport 6", 35's 1992 Ford F-150, 2WD, 5.0 and now rollin on MONSTER 31's

13 Mar 2008, 08:15 pm	#4 (permalink)
ford_racer Dedicated Tremekian Join Date: Oct 2004 Location: Billings, MT Posts: 2,382 ford_racer's Gallery	Re: Rough Cold Idle Get some Mass Air cleaner. DO NOT USE CARB CLEANER. It will **** up your electrical contacts. Take the IAC off, and empty half the bottle into the thing. Give it some time to dry, re-install, and test. Do the same with the MAF if you thing it's the problem. However, if the IAC is the problem, cleaning it is only a temp fix. You'll have to get a new one eventually. __________________ 98 Mustang GT convertible auto- Open H-pipe, K&N drop in. 15.8 @ 88 mph. Thanks Montana... Knives? Check. Rope? Check. Dagger? Check. Chains? Check. Locks? Check. Laser Beams? Check. Acid? Check. Body Bag? Check.

24 Mar 2008, 10:41 am	#5 (permalink)
Marek Veteran Tremekian Join Date: Apr 2004 Location: Montreal Posts: 4,211 Marek's Gallery	Re: Rough Cold Idle your AMM or MAF might be defective. If you want to be sure that it is in fact busted, when your car is on on idle, unplug the AMM/MAF and if the idle isnt affected whatsoever then its busted. good luck buck! __________________ ¤´¨) ¸.·´¸.·´¨) ¸.·¨) (¸.·´ (¸.·` ¤ roll it up and smoke it. '92 944T, 3"straight pipe+18psi=fun-'91 244DL, stock

24 Mar 2008, 02:05 pm	#6 (permalink)
robz95xj Oooo Pretty Bumper Join Date: Mar 2005 Location: I'm Thinkin Of Takin' A Shit On Ramseys Trans Am Posts: 12,859 robz95xj's Gallery	Re: Rough Cold Idle cleaned the throttlebody with throttle body cleaner and it fixed the problem, now to fix the bad gas milage __________________ 1995 Cherokee Sport 6", 35's 1992 Ford F-150, 2WD, 5.0 and now rollin on MONSTER 31's

24 Mar 2008, 07:39 pm	#7 (permalink)
American Psycho Play with your blood Join Date: Mar 2004 Location: American Gardens Building on W. 81st Street on the 11th floor Posts: 12,116 American Psycho's Gallery	Re: Rough Cold Idle obviously do a full tune up. - Plugs bosche platinums+4 $6 each and go for up too 100,000 miles - Wires - Cap/rotor - Oil change - Fuel Filter - Air filer - Adjust your tire pressure - easy on the fuel pedal and see where your timing and TPS is at. __________________ Last edited by American Psycho; 24 Mar 2008 at 07:41 pm.

24 Mar 2008, 08:17 pm	#8 (permalink)
Soup Dedicated Tremekian Join Date: May 2005 Posts: 2,891 Soup's Gallery	Re: Rough Cold Idle fuel economy fix: trade the f-150 for an escort. __________________ 2006 Jetta - 2.5low 1988 Suzuki Samurai - rust city 2003 Buell Blast

24 Mar 2008, 09:04 pm	#10 (permalink)
bmxer99 User is rowing away Join Date: Apr 2005 Location: Pushing a Jeep off a cliff Posts: 20,939 bmxer99's Gallery Infractions: 0/3 (300)	Re: Rough Cold Idle i think i found the problem, oh yeah its a ford __________________

25 Mar 2008, 04:25 am	#11 (permalink)
01mmmz28 Veteran Tremekian Join Date: Dec 2005 Location: On a national search to find burgh a dentist that will work on baboon teeth. Posts: 4,845 01mmmz28's Gallery	Re: Rough Cold Idle there is a small hole on the throttle body blade that allows air to come in at idle. Make sure this small hole is not clogged up or blocked in any way. If it is only during the cold, moisture may be getting in there somehow and causing the maf to read poorly upon cold start up. clean the maf and the throttle body and see is that helps. If not, try the fuel filter, mine acted up during the cold before, because it was dirty and needed replacing. __________________ 2001 Z/28 LS1. Texas speed cam 231/237 598/595 112 lsa, .660 lift springs,7.4 hardened pushrods, lid, LT headers,TSP X pipe,Texas speed "true duels",Richmond 4.10 gears, stud kit, Thunder racing girdle cover, Spec stg 3+ clutch, ARP rod bolts, clevite main and rod bearings, 25% underdrive pulley, SLP 85mm MAF,black ZR1 rims 315/35/17 Nitto DR's, BMR subframes, BMR LCA's, Edelbrock TQ Arm, BMR pan hard bar. LS2 timing chain and gear set, LS6 ported oil pump.... Tuned by R.P.M. Performance. All labor done my ME and a few good friends !!!!

25 Mar 2008, 03:14 pm	#12 (permalink)
robz95xj Oooo Pretty Bumper Join Date: Mar 2005 Location: I'm Thinkin Of Takin' A Shit On Ramseys Trans Am Posts: 12,859 robz95xj's Gallery	Re: Rough Cold Idle am thinkin of trying plugs, wires cap and rotor and O2 sensor, am really about done puttin money into it need to get the jeep back together __________________ 1995 Cherokee Sport 6", 35's 1992 Ford F-150, 2WD, 5.0 and now rollin on MONSTER 31's

25 Mar 2008, 09:08 pm	#15 (permalink)
Soup Dedicated Tremekian Join Date: May 2005 Posts: 2,891 Soup's Gallery	Re: Rough Cold Idle Get a wagon. I fit all four of the 30" tires for my samurai into my sedan corolla no problem, a wagon could fit tons more. __________________ 2006 Jetta - 2.5low 1988 Suzuki Samurai - rust city 2003 Buell Blast

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