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Ford Ranger Engine questions

256 messages,  Last post on Dec 02, 2009 at 5:39 AM

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#221 of 256 Re: twin plug head [pops13] by bolivar Dec 31, 2008 (5:04 pm)
Replying to: pops13 (Dec 31, 2008 3:48 am) I can tell you the general reason for this design - pollution control. The plugs fire in the 'regular' fuel compression cycle for power, then the other plug for a cylinder also fires in the 'exhaust' cycle in an attempt to burn any unburned fuel before it is exhausted.
#222 of 256 plug wire placment by hoeh Jan 18, 2009 (3:24 pm)
#223 of 256 plug wire placment by hoeh Jan 18, 2009 (3:24 pm)
89 ranger 2.9L I am looking for some help to find the order of plug wires on the distibutor cap can any one help
#224 of 256 2005 4l engine quits running and restarts immediately by ranwill Jan 30, 2009 (4:10 pm)
I will be driving my 05 ford ranger 4x4 level 2 and the motor will stop and then restart immediately without any fault showing up. I had it checked at the ford garage and they said four of the six cylinders were dropping out and the engine control module needed to be replaced. After replacing the module the truck continues to have the same problem. Replies to this message: lickity (Jan 31, 2009 3:50 am) mickeymouse2 (Jan 31, 2009 5:38 am) glider_man (Oct 31, 2009 9:59 pm)
#225 of 256 Re: 2005 4l engine quits running and restarts immediately [ranwill] by lickity Jan 31, 2009 (3:50 am)
Replying to: ranwill (Jan 30, 2009 4:10 pm) It sounds like a grounding problem. Have it checked at an automotive electrical specialty shop.
#226 of 256 Re: 2005 4l engine quits running and restarts immediately [ranwill] by mickeymouse2 Jan 31, 2009 (5:38 am)
Replying to: ranwill (Jan 30, 2009 4:10 pm) I have run into this before. It was a difficult diagnosis. Check to see if the Alternater is leaking AC voltage through one of the diods. The alternater may be charging just fine, but if the alternating current is leaking past the diods, it wont be detected without special test equipment. I have had this cause PCM's to shut down befor and do all kinds of crazy things. Without a vantage graphing meter to test for this, disconnect the alternater from the electrical system. This will turn your check engine light on but its part of the test. Place a battery charger on the battery and run the vehicle. See if the symptom goes away. Don't let the voltage drop below about 10.5v on the battery during the test. The PCM shuts down at that voltage anyway. Good luck.
#227 of 256 Engine spec question by numafan Feb 22, 2009 (12:55 pm)
Just want to know what the letters DOHC stand for on engine spec. Replies to this message: grump1 (Feb 22, 2009 1:38 pm)
#228 of 256 Re: Engine spec question [numafan] by grump1 Feb 22, 2009 (1:38 pm)
Replying to: numafan (Feb 22, 2009 12:55 pm) Hello,, DOHC means: ""Double Over Head Cam"" . Thanks.
#229 of 256 gear shifting by bassa12 Mar 18, 2009 (7:12 am)
so i just recently got my 1989 ford ranger working. the module that comes off of the distibutor was bad. my dad and i took almost the whole engine apart to get to this damn part. now that its all back together i have less power in the engine than i did before and it really slams into second and third gear. anyone know what might be the problem? its a 2.9 L 4 cylinder. Replies to this message: bolivar (Mar 19, 2009 2:31 pm)
#230 of 256 Re: gear shifting [bassa12] by bolivar Mar 19, 2009 (2:31 pm)
Replying to: bassa12 (Mar 18, 2009 7:12 am) I'm assuming this is an automatic.   If the transmission has a 'vacuum modulator' on it, this part has a vacuum line going to it. If the line is unhooked or has a split, hard shifts as you are feeling will occur.   Find the modulator, probably on the right side of the tranny somewhat high up, and follow the line back to where it gets vacuum off the intake, looking for a problem.   Or, the modulator may have failed. If the diaphram inside is burst, it will pull tranny fluid into the intake, where it will mix with the air into the cylindars, and will be burned. Your tranny fluid will drop as it is burned in the engine.

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