Question about 1998 Dodge Neon

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If i hooked a hot wire with a switch up to my dual radiator fans with a switch, would that affect my 1998 dodge neon, 2.0 L, manual transmission, dohc to have a problem dying? I have replaced the cam, crank sensor, fuel pump, alternator, coil pack, plug wires, radiator. I replaced the engine a year ago. The only thing that I can think is that the PCM is bad. How can I check the PCM out to see if it is bad.

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It shouldnt affect anything ,b ut if engine keeps dying then thats another problem

Posted on Sep 09, 2009

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PCM is difficult to diagnose without proper scan tool, commanding components and verifying pcm ability to control them. Watching data as compared to actual inputs, these eliminate all but the pcm. As for the cooling fans, I have seen cooling fan related issues cause the pcm to failsafe. Causing stalling, low power, and rough idle. Why did you install a manual switch. If pcm is commanding them on and the fans, relays, and circuits are good then your circuits are good. I would look into why the fans are not operational and this may lead to the diagnosis you need.

Posted on Sep 09, 2009


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What would make the fans not come on and cool the radiator?

Hello Anonymous,

Before replacing the fan motor try hot wiring it to see if the motor will run. Disconnect the two wire connector at the fan motor and run two jumper wires from the battery. If you get the polarity backwards the fan will still run, just backwards... but it will answer the question of whether or not the motor is bad. If the motor runs on the hot wire setup, it's good and the problem lies somewhere else like the radiator fan relay.

This relay is located near the driver's side front wheel well. Go under the car and find the wires leading to the radiator fan on the drivers side. Trace them back and you will see they go to a waffer shaped solid state relay bolted to the car near the wheel well. It measures about 1 1/2 inches across and is about 1/4 inch thick.

Severe corrosion or heat damage to the aluminum mounting bracket may be the culprit. .

May 18, 2016 | 1998 Dodge Neon

1 Answer

Where can i find a wiring diagram for neutral safety switch for 2003 neon

The DK BLU/WHT wire from 15A fuse 10 in the fuse block connects to terminal 2 of the brake transmission shift interlock solenoid. The WHT/PINK wire from the brake lamp switch connects to terminal 1.

Apr 09, 2013 | 2003 Dodge Neon

1 Answer

My boyfriend hooked a toggle switch up to my fan in my 97 dodge neon, he got the fan to work, but now my car won't start! We thought it just drained the battery, so we tried to jump it, but that

Where did he get the power from to run the fan,if he just used a hot wire from inside the car it most likely blew the fuse for ignition as the engine fan gets its power from a relay in the power distribution box under the hood as far as the fan goes if it ran with the wire then the engine coolant temp sensor is probably bad

Jul 11, 2017 | 1997 Dodge Neon

1 Answer

Im stuck...I have an 04 Srt-4 and the Radiator Fans Havent been working period and with the California heat its making my car overheat quickly at idle. Ive taken the car to a shop and had a dianogstic ran...

hi, please check your radiator stat, you may have another on the head wich may be connected to the E C U. if you feel down the side of the rad. should find two connections into a small unit screwed into the rad. these sometimes burn out. to test if rad. stat is open circuit ( link the two terminals together this is only a temperature switch) i hope this infor. usefull gerry

Sep 07, 2010 | Dodge SRT4 Cars & Trucks

1 Answer

Reverse lights not working.have check fuses and blubs

your neutral starting switch on the transmission is also your back up light switch,locate the three wire screw in switch on the radiator side of the transmission and with a test light ,turn the key on and unhook the connector one wire will be hot one wire is the back up lights,using a jumper wire put one end in hot wire and jump one of the other two,one will activate your lights.

Dec 28, 2009 | 2001 Dodge Neon

2 Answers

Fans wont run/new relay installed what next

next is to check if you got power and ground to the motor if yes then you have bad radiator fan motor

Jul 22, 2009 | 1998 Dodge Neon

2 Answers

Radiator fans on my neon are not turning

check the fuses and the wiring going to the fan to see if you have power cause normally both do not go out at the same time

Mar 12, 2009 | 1998 Dodge Neon

1 Answer

Radiator cooling fan stays on when car is shut off.

replace the fan switch sensor unlikey a relay because there on! cant be bad wireing there on! replace the sensor

Feb 22, 2009 | 1998 Dodge Neon

1 Answer

My resofwar is boiling

The radiator fan is controlled by a temperature-sensitive switch normally found near the bottom of the radiator. Once temperature is reached, it should measure a short (using a meter) to ground since the 12 volts is normally applied to the fan and the other motor lead is grounded through the switch.  
If no coolant is circulating after warmup, the thermostat has failed to open at the prescribed temperature which explains the cool radiator temp. If you try the heater, you will probably find that it heats like crazy since the heater in most cars gets coolant well before the thermostat opens and starts to divert coolant through the radiator.
I hope the previous owner did not drive the car very far with a bad thermostat and fan switch since an overheated motor is prone to blow headgaskets and warp the head.
You need to buy an aftermarket service manual from Haynes (better) or Chilton (just OK) soon.
The problem with your brake lights could come from several sources and to trace the wiring (if the fuse is not blown for them), you will need a diagram from one of the named manuals.  

Sep 07, 2008 | 1997 Dodge Neon

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I am having trouble with my speedometer not working occasionally and now my seat belt light is coming on sometimes too. Is this the instrument panel cluster? Or something else? 1998 Dodge Neon. Backstory is as follows: -We take very good care of it and have one dedicated mechanic. -It has only had two owners; my parents and I. -We replaced the battery 2 months ago. -Mechanic checked to make sure the speedometer sensor was working. -We have had issues with the radio for years where it will randomly turn on and off, typically brought on by a stuffed trunk OR wet weather. -The speedometer works until we hit a bump and then the needle flies up and down or sometimes just stops working all together. -Mechanic has made mention of there being some Chrysler specific battery cable that is a smaller side cable and it is not in good condition. -Currently, my problem is that I can't find an old 1998 Dodge Neon in the salvage yard because yards are doing a lot of 2002 and newer vehicles and automatically crushing the others. The meat and potatoes of my question is what direction do I go in? And what of these symptoms ties to each other? And will adding new solder to the points on the panel fix it or is it something else? I'm trying to find least expensive to most expensive options and I'm rather handy but can't drop an engine or transmission or anything so keep this in mind. My handiness ends at resoldering the pins BUT I do have a mechanic I trust, but I fear that maybe I'm not combining symptoms properly. I have the money to repair an item I KNOW is wrong but not to chicken hunt around for problems.

Mar 22, 2017 | 1998 Dodge Neon

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