Got a Dodge truck that wont idle! - 2003-04 Mach 1 Registry Owners Club

03AV8R · 04-08-2009, 10:24 AM

So i got in this 97 4X4 dodge truck, ext cab fully loaded in really good shape.. I wanna attach it to my trailer permanently & use it just for that.. haulin my trailer to the track & the nearby auctions etc.. the problem is that it wont idle.. as soon as you take your foot off the gas she dies.. It runs & drives excellent too.. I replaced the battery & the connectors because they were really bad.. the problem was fixed for a day or so.. thought i had it fixed but last nite she started doing it again??

Im getting no CE lites whatsoever?? Which only makes it more difficult to narrow down.. Im thinking IAC, TPS sensor or low fuel pressure?? I checked voltage after the battery change & had like 13.9 V (while running) or something like that so i doubt its a weak alternator.. Ill need to re-check that again though while she's havin the problem again.. I just dont want to start replacing $50 sensors for nottin.. All the vacuum lines look good & connected up etc..

Anyone else have one of these Dodges they had the same problem with??

towbar · 04-08-2009, 12:47 PM

My father in law has one that had the same problem and it was the crank sensor. Thats something you might want to check as well.

Uloset · 04-08-2009, 12:57 PM

I've had a similar problem on a 99 4.0 Jeep Cherokee and I know for that model the crank sensor is the culprit. I just detached the battery though and it only gave me the problem maybe once in about 3-4 years. I also have heard/seen of late 90's Chryslers problems having something to do with a lose wire in the dash cluster. Some the dash goes out but the car runs fine just no tach, mph etc and others where it stalls out when the guages stop working.

zincmock03 · 04-08-2009, 03:43 PM

go to dodgetalk.com . They have a ton of info on that site.

04-08-2009, 10:24 AM	#1
03AV8R Terrible Dyno Car! Join Date: Aug 2003 Location: Epping, NH Posts: 6,666	Got a Dodge truck that wont idle! So i got in this 97 4X4 dodge truck, ext cab fully loaded in really good shape.. I wanna attach it to my trailer permanently & use it just for that.. haulin my trailer to the track & the nearby auctions etc.. the problem is that it wont idle.. as soon as you take your foot off the gas she dies.. It runs & drives excellent too.. I replaced the battery & the connectors because they were really bad.. the problem was fixed for a day or so.. thought i had it fixed but last nite she started doing it again?? Im getting no CE lites whatsoever?? Which only makes it more difficult to narrow down.. Im thinking IAC, TPS sensor or low fuel pressure?? I checked voltage after the battery change & had like 13.9 V (while running) or something like that so i doubt its a weak alternator.. Ill need to re-check that again though while she's havin the problem again.. I just dont want to start replacing $50 sensors for nottin.. All the vacuum lines look good & connected up etc.. Anyone else have one of these Dodges they had the same problem with?? __________________ 2003 Mach1 4-Speed Stick Axles of Evil Racing Bolt-On's All the good ones :PIMP: running 11.17's N/A on the stock factory motor. Results Best 1/4 mile 11.174 (Slicks) 11.2's (Quick TP's) 12.072 (17" Street Stocker wheels & tires) Best MPH 119.22 Best 60' 1.474 (With ET Drags) 1.51 (Quick TP's) 1.8's (17" stockers)

04-08-2009, 12:47 PM	#2
towbar Registered User Join Date: Nov 2007 Location: Columbus, OH Posts: 49	Re: Got a Dodge truck that wont idle! My father in law has one that had the same problem and it was the crank sensor. Thats something you might want to check as well. __________________ Jason 03 Mach 1 TR 93 LX 2.3T

04-08-2009, 12:57 PM	#3
Uloset Fastest Mach 1 Somewhere Join Date: Mar 2004 Location: Trenton, NJ Posts: 1,302	Re: Got a Dodge truck that wont idle! I've had a similar problem on a 99 4.0 Jeep Cherokee and I know for that model the crank sensor is the culprit. I just detached the battery though and it only gave me the problem maybe once in about 3-4 years. I also have heard/seen of late 90's Chryslers problems having something to do with a lose wire in the dash cluster. Some the dash goes out but the car runs fine just no tach, mph etc and others where it stalls out when the guages stop working. __________________ "It is not necessary to understand things in order to argue about them" I have a problem every time I pull up to some ricer a strange buzzing noise comes from behind me, any clue what it could be?

04-08-2009, 03:43 PM	#4
zincmock03 Registered User Join Date: Feb 2008 Location: Baltimore, MD Posts: 694	Re: Got a Dodge truck that wont idle! go to dodgetalk.com . They have a ton of info on that site. __________________ 2003 Zinc Yellow Mach 5spd Upr Catted X pipe/ SSS adrenaline cb/JLT intake/MGW shifter/Ford Racing Alum DS/4.10's/31 Spline axles/cobra 31 spline diff/Diff Cover-girdle/ Eibach Pro kit springs/ Bilstein shocks/ 17x9 /17x10.5 chrome bullitts/ 6000k hid heads/fogs, smoked headlights/ sequential turn/: Dyno Tuned By Excessive 304 rwhp 330 tq

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