Ranger bucking at 15k rpm

[Singer]

My ranger was in the shop for 2 months and not fixed yet. Started out slightly bucking over a period of time but got worse. Was scared to drive. Took it on where they ran all sorts of diagnostics. Tech personally told me he had no idea what was causing the problem. Continued with diagnostics finally calling out of town techs to get involved. Went into motor checking for any problems. No success. I was told it was the torque converter. Ordered torque converter where arrival date was changed 3 times. Service manager cancelled order. Ordered new transmission because he could get it with the torque converter. Put it in, no change. At this point, main tech from out of town comes in and spends 6 hours trying to find problem. Says it's a sensor so the sensor is changed. Seem to get better before it got worse. I was told the computer in the trucks needs to get familiar with the new transmission. Funny, when I bought the truck, the computer and the transmission were already married. Was told there was a 500 mile break in period. I will play the game til 500 miles. I got a case manager involved from Ford motor company. Also talking to LEMON lawyers. I'm going to push for a truck replacement.

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[D Fresh]

How do you get it to Rev to 15k rpm?

 

[Singer]

How do you get it to Rev to 15k rpm?

My bad.

 

[Dereku]

My bad.

Dont admit fault. Revving it that high would cause issues.

 

[Singer]

Dont admit fault. Revving it that high would cause issues.

No reving. Normal driving 30 mph

 

[NotBudule]

Wasn't there a thread about the EGR thingy causing similar issues ?

 

[Singer]

Wasn't there a thread about the EGR thingy causing similar issues ?

There is a thread where they had a throttle body replacement that fixed the problem.

 

[NotBudule]

There is a thread where they had a throttle body replacement that fixed the problem.

That too , but a little EGR doohicky was also a fix on some...

 

[Bob902]

https://www.ranger5g.com/forum/threads/bucking-surging-epidemic.14581/



Try this. Talks about replacing EGR valve.

 

[NotBudule]

 

[Wytchdctr]

I'm going to order one now.. and also avoid reving to 15k

 

[RangerRoger]

My ranger was in the shop for 2 months and not fixed yet. Started out slightly bucking over a period of time but got worse. Was scared to drive. Took it on where they ran all sorts of diagnostics. Tech personally told me he had no idea what was causing the problem. Continued with diagnostics finally calling out of town techs to get involved. Went into motor checking for any problems. No success. I was told it was the torque converter. Ordered torque converter where arrival date was changed 3 times. Service manager cancelled order. Ordered new transmission because he could get it with the torque converter. Put it in, no change. At this point, main tech from out of town comes in and spends 6 hours trying to find problem. Says it's a sensor so the sensor is changed. Seem to get better before it got worse. I was told the computer in the trucks needs to get familiar with the new transmission. Funny, when I bought the truck, the computer and the transmission were already married. Was told there was a 500 mile break in period. I will play the game til 500 miles. I got a case manager involved from Ford motor company. Also talking to LEMON lawyers. I'm going to push for a truck replacement.

Apart from the obvious snafu of 15K not 1.5K and the funny replies, it sounded a bit like my Ranger issue. Mine was more like a thud and surge around 2k with the tach jumping 2 or 3 hundred constantly. When i took it in nothing comes up on the diagnosis machines so mechanics then have no idea what it can be. When they did finally come up with torque converter, that sounded about right and there are lots of reports of Ranger torque converters going bad. But I did worry that changing the torque converter and transmission as a package was overkill and they'd missed something simple. When I asked if they had drained the transmisson fluid to see if there was metal in it, they looked at me like I was from Mars. I don't know if they hadnt thought of that or they didnt want to go through the expense when they wernt sure.They'd already told me it was a couple of relays and changed those charged me nearly $300 and said it was "fixed" But so when they did drain the fluid sure enough there was a substantial amount of metal paste in the transmission filter.

 

[RangerRoger]

Interesting about the EGR. Is this the one that sits in the airfilter box? I also had a surging issue that people were saying could be done to this, but it turned out it was another common issue of the intercooler having a leak and then sending whacky signals to the throttle body.

 

[Wytchdctr]

Interesting about the EGR. Is this the one that sits in the airfilter box? I also had a surging issue that people were saying could be done to this, but it turned out it was another common issue of the intercooler having a leak and then sending whacky signals to the throttle body.

It's on the intake manifold towards the back.

 

[Singer]

I'm going to order one now.. and also avoid reving to 15k

Lol. Sorry about 15k

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